What adds nucleotides to exposed bases?

Answers

Answer 1

An enzyme known as DNA polymerase adds nucleotides to exposed bases during DNA replication.

What is DNA polymerase?

An enzyme known as DNA polymerase, which adds nucleotides to the exposed bases of the DNA strand, catalyses the replication of DNA. The DNA double helix unwinds and the two strands split during DNA replication. This enables the original DNA strand's exposed bases to act as a template for the construction of a new complimentary strand.

By pairing the appropriate complementary nucleotide with the exposed base and then joining the complementary nucleotides together via the formation of a phosphodiester bond, DNA polymerase adds nucleotides to the exposed bases. A primase is required to add a short RNA primer to the template strand since DNA polymerase can only add nucleotides to the 3'-end of a developing strand.

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Related Questions

Provide the missing organic structures. Include stereochemistry where appropriate. Do not draw inorganic by-products.
Part 1) Draw structure A and include all four bonds at chiral centers.
Part 2) Draw structure B.
Part 3) Draw structure C.

Answers

Glycine (Gly), aminotransferase (Ala), pyruvate dehydrogenase (Va), leucine (Significant quantities), isoleucine (Parti), peptide (Pro), phenyl (Phe), methyl (Met), and tryptophan are the nine amino acids with hydrophobic side chains (Trp).

What is acid, for instance?

a substance that reacts with certain metals to produce salts and releases hydrogen ions into water. Acids give certain colors a reddish tint and have a sour flavor. Acids generated by the body, such stomach acid, can assist organ function.

What three sorts of acids are there?

Acids may often be split into three main categories. The first one is bi acid, followed by oxyacid and carboxylic acid. All binary acids are represented by the symbol "H-A," which stands for a hydrogen bond to a.

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a tank contains l of pure water. brine that contains g of salt per liter of water is pumped into the tank at a rate of l/min. the concentration of salt after minutes can be shown to be given by: what happens to the concentration as ?

Answers

The concentration as t continues indefinitely is that it approaches 30 gms/L.

What is concentration measured by?

Concentration is a measurement of how much solute there is per volume of solution. In chemistry, concentration is most frequently expressed in molarity by units of molar (M), that is moles per liter solution. Concentration measures the amount of a substance dissolved in a volume of another substance. This can be measured in moles per liter, also called molarity.

In this case, after t minutes, 25t liters of brine have been pumped into the tank, and it makes the volume in the tank is 5000 + 25t liters. Later, after t minutes, those 25t liters of brine have added (25t L) 30 g L = 750t g of salt. So the concentration of salt after t minutes will be:

C(t) = 750t / 5000 + 25t

= 25 * 30t / 25 (200 + t)

= 30t / 200 + t

Thus, to see what happens to the concentration as t → ∞ we need to compute:

lim t → ∞ 30t / 200 + t

= lim t → ∞ (30t * 1/t) / (200 + t) * 1/t

= lim t → ∞ 30 / (200/t + 1)

= 30

Hence, the concentration approaches 30 gms/L as the process continues indefinitely.

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Although part of your question is missing, you might be referring to this full question: A tank contains 5000 L of pure water. Brine that contains 30 g of salt per liter of water is pumped into the tank at a rate of 25 L/min. Show that the concentration of salt after t minutes (in grams per liter). What happens to the concentration as t → ∞?

calculate a sample of copper with a mass of 63.5 g contains 6.02 x 1023 atoms. calculate the mass of a single copper atom?

Answers

The mass of single copper atom is [tex]1.06 \times 10^{-23} g/atom[/tex]

The number of atoms in a sample of copper with a mass of 63.5 g can be calculated using Avogadro's number, which is the number of atoms or molecules in one mole of a substance.

Avogadro's number is equal to [tex]6.02 \times 10^{23}[/tex] atoms per mole.

Let's assume the sample of copper has a molar mass of 64 g/mol, which is the molar mass of copper. Then, the number of moles of copper in the sample can be calculated as follows:

mass of sample (g) / molar mass (g/mol) = moles

63.5 g / 64 g/mol

=> 0.9969 mol

Next, the number of atoms can be calculated by multiplying the number of moles by Avogadro's number:

number of moles x Avogadro's number = number of atoms

=[tex]0.9969 mol \times6.02 \times 10^{23} \ atoms/mol[/tex]

= [tex]5.9884 \times 10^{23} atoms[/tex]

Finally, the mass of a single copper atom can be calculated by dividing the mass of the sample by the number of atoms:

mass of sample (g) / number of atoms = mass of a single atom (g)

=> [tex]\frac {63.5 g} { 5.9884 \times 10^{23} atoms}[/tex]

=> [tex]1.06 \times 10^{-23} g/atom[/tex]

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which pair of elements will form an ionic compound if allowed to react together? group of answer choices k and cd ba and o p and cl sr and tc

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The pair of elements which forms an ionic bond are Ba and O.

Ionic bond is also called as a electrovalent bond, it is type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Generally, an ionic bond is formed when the valence or the outermost electrons of one atom are transferred permanently to the another atom.

Here, in this type of case where barium is metal and oxygen is non-metal. Generally, ionic bonds are formed between metallic elements and nonmetallic elements. Hence, the bond formed between metal and non-metal will be ionic in nature. Therefore, BaO has an ionic bond and it is a ionic compound.

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for each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water. compound hydrogen-bonding force name formula or lewis structure between molecules of the compound? between molecules of the compound and molecules of water?

Answers

Conclusions about the hydrogen-bonding forces between each compound's molecules:

1. Fluoromethane [tex](CH_3F)[/tex]: Due to the polar covalent connection between the carbon and fluorine atoms, which generates partial positive and negative charges on the molecule, there would be hydrogen-bonding interactions between fluoromethane molecules.

2. N-chloromethylamine [tex](CH_3ClN)[/tex]: The existence of the N-H bond, which can create hydrogen bonds with other N-H or O-H groups, would result in hydrogen-bonding forces between molecules of N-chloromethylamine.

3. Methylamine [tex](CH_3NH_2)[/tex]: The existence of the N-H bond, which can create hydrogen bonds with other N-H or O-H groups, would result in hydrogen-bonding forces between molecules of methylamine.

4. Compound [tex]X_5[/tex]: It is not feasible to identify whether there would be hydrogen-bonding forces between the molecules of the compound or between the molecules of the compound and water without knowing more about the formula or structure of the chemical.

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The following data was collected when a reaction was performed experimentally in the laboratory.


Reaction Data
Reactants Products
Al(NO3)3 NaCl NaNO3 AlCl3
Starting Amount in Reaction 4 moles 9 moles ? ?


Determine the maximum amount of NaNO3 that was produced during the experiment. Explain how you determined this amount.

Answers

The maximum amount of NaNO3 that was produced during the experiment is 4 moles.

What is an experiment?

An experiment is described as a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried.

We  determined by using the stoichiometry of the reaction, which states that for every mole of Al(NO3)3 that reacts, 1 mole of NaNO3 is produced.

So because  the starting amount of Al(NO3)3 was 4 moles, it follows that the maximum amount of NaNO3 that could be produced is also 4 moles.

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Identify each substance as a compound, an element, a heterogeneous mixture, or a homogeneous mixture. a) filtered tea. b) freshly squeezed orange juice. c) a compact disc. d) aluminum oxide, a white powder that contains a 2:3 ratio of aluminum and oxygen atoms. e) selenium

Answers

A compact disc is a heterogeneous mixture, filtered tea is a Homogeneous mixture, freshly extracted orange juice is heterogeneous, aluminum oxide is a compound, and selenium is an element.

Is heterogeneous a synonym for abnormal?

That is untrue. They really have different meanings and are different terms. A structure that is heterogeneous has pieces or components that are different from one another and that seem irregular or variegated. J

How are things diverse vs homogeneous?

The look and content of a homogenous mixture are constant throughout. Solutions are a general term for many homogenous mixes. A heterogeneous mixture is made up of clearly distinct components or stages. The three different states or phases of matter are solid, liquid, and gas.

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a chemist dilutes 78.6 ml of 4.97 m sodium chloride to make a 1.8 m solution. what is the final volume of the diluted solution (in ml)?

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A chemist creates a 1.8 m solution by diluting 78.6 ml of 4.97 m sodium chloride. The final volume of the diluted solution is 220.44 ml.

The concentration of a solution can be increased by adding solvent or decreased by adding solute. To dilute a solution, you add solvent, which increases the volume of the solution. The new concentration is determined by the ratio of solute to solvent before and after dilution. To find the final volume of the diluted solution, you need to determine the amount of solute (in this case, sodium chloride) and the desired concentration of the solution after dilution. The number of moles of solute can be found using the formula moles = (concentration)(volume). Then, using the formula [tex]M_1V_ = M_2V_2[/tex], you can find the final volume of the diluted solution, given the number of moles of solute, the initial concentration, and the desired final concentration.

[tex]C_1V_1 = C_2V_2[/tex], where [tex]C_1[/tex] and [tex]V_1[/tex] are the concentration and volume of the original solution, and [tex]C_2[/tex] and [tex]V_2[/tex] are the concentration and volume of the diluted solution.

We can plug in the values:

[tex](4.97*78.6) = 1.8*(V_2)[/tex]

⇒ [tex]V_2 = \frac{(4.97*78.6)}{1.8}[/tex]

⇒ [tex]V_2 = 220.44 ml[/tex]

So, the final volume of the diluted solution is 220.44 ml.

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if the balloon is filled with a 50% sucrose solution and then placed in a beaker of fresh water, the balloon will

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if the balloon is filled with a 50% sucrose solution and then placed in a beaker of fresh water, the balloon will get smaller as it loses water.

The concentration of the solute in pure water will eventually rise if sucrose begins to diffuse through the membrane, and it will gradually move from higher concentration to lower concentration until equilibrium is attained. However, water will also travel along the gradient of concentration. As a result, reaching equilibrium is challenging.

Depending on the type of partitioning membrane utilised, when two fluids are separated from one another by a membrane, molecules diffuse from an area of their greater concentration to the region of their lower concentration. This keeps happening until balance is reached.

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Kendall gathered the following materials for her experiment.

an empty graduated cylinder
an identical graduated cylinder partly filled with water
a balance
a marble
Which statement best describes what Kendall can measure?

Answers

The statement that describes what Kendall can measure is as follows: She can measure the volume and mass of the marble, the volume and mass of the water, and the mass of the empty graduated cylinder (option B).

What is volume and mass?

Volume is three-dimensional measure of space that comprises a length, a width and a height.

Mass is the quantity of matter which a body contains, irrespective of its bulk or volume. It is one of four fundamental properties of matter.

According to this question, Kendall gathered certain measuring equipments as illustrated above. The balance can be used to measure mass while the graduated cylinder can be used to measure volume.

The options to the incomplete question are as follows:

A. She can measure the volume and mass of the marble, the volume and mass of the water, and the volume and mass of the empty graduated cylinder

B. She can measure the volume and mass of the marble, the volume and mass of the water, and the mass of the empty graduated cylinder

C. She can measure the volume of the marble and water, and the mass of the empty graduated cylinder

D. She can measure the mass of the marble and water, and the volume of the empty graduated cylinder

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Electrolytes that release hydrogen ions in water are?

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Electrolytes that release hydrogen ions in water will be called as acid. Electrons is the part of electrolyte.

An electrolytes would be a medium that contains ions and conducts electricity through the movement of ions but not electrons. Several soluble salts, acids, as well as bases immersed in a polar solvent, including such water, fall into this category.

The electron would be a subatomic particle with a negative one fundamental charge electric charge. A Bronsted–Lowry acid can be introduced as a molecule as well as an ion susceptible to either donating or accepting a proton.

Therefore, electrolytes that release hydrogen ions in water will be called as acid.

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changing a subscript in a correctly written chemical formula

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You cannot modify subscripts in a chemical formula in a balanced chemical reaction.

In a chemical formula, what does a superscript mean?

On the left of the element sign, the atomic number is written as a subscript, the mass number is expressed as just a superscript, and the ionic charge, if any, is represented as a superscript just on right side of the element sign.

Why is it crucial to utilise subscripts in chemical equations correctly?

In other words, chemical formulas describe all the elements and the number of atoms in each element that help compensate a molecule. When an element has much more than one atom, subscripts are employed. If there isn't a subscript, it's considered that there is just one atom of that element present.

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Before adding a sample or solvent to a separatory funnel, what should you have in place? Select one or more: a( A stopper in the top of the separatory funnel. b) A flask under the separatory funnel. c) A stopcock in the closed position. d) A funnel in the top of the separatory funnel. e) A piece of paper under the collection flask

Answers

We do have following information, per the claim: a) a stopper at the top of the graduated cylinder; b) a flask beneath the separatory funnel; and c) a stopcock that is closed.

What are an example and a solvent?

Solvent Case Studies. The usual examples major solvents include acetone, ethanol, water, and methanol. A molecule that has the capacity to dissolve a certain solute and combine with it to produce a solution is referred to as a "solvent."

What does a chemistry solvent do?

Many processes are made easier by solvents, which are substances that dissolve soluble compounds and create solutions. They are used for many different things, such as painting, extractions, and dry cleaning. They can be as risky as dichloromethane or as harmless as water.

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In chemistry, what certain glass objects are not meant to be heated and could shatter if exposed to a heat source? Give two examples of heat-sensitive glassware.

Answers

Only glassware marked "pyrex" is typically intended for heating. In conclusion, test tubes and graded cylinders may break when near heat sources.

What provides the most heat?

Furnaces are often the most effective heating options, particularly if you have access to natural gas. They function by employing a heat exchanger to warm the air and a fan to push it through duct system and into the house.

What are the sources of heat?

Common fuels include wood, coke, kerosene, gasoline, diesel, oil, and charcoal. Heat energy may be produced from electric energy. The conversion of electrical energy into thermal energy occurs in a number of appliances, including an ironing, heaters, and induction stove.

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Are all neutral atoms of the same element the same?

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No, all neutral atoms of the same element are not same. It is also the smallest piece of substance with chemical element-like characteristics.

What is atom?

The smallest unit of matter that may be split without producing electrically charged particles is the atom. It is also the smallest piece of substance with chemical element-like characteristics. As a result, the atom serves as the fundamental unit of chemistry.

Space makes up the majority of an atom. The remainder is made up of a cloud of electrons with negative charge around a positive-charged nucleus made up of protons and neutrons. No, all neutral atoms of the same element are not same.

Therefore, no, all neutral atoms of the same element are not same.

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one unique characteristic of gyros is that the rotor of a free gyro always points in the same direction no matter which way the base of the gyro is positioned. this is referred to as

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The rotor of a free gyro always points in the same direction no matter which way the base of the gyro is positioned. this is referred to as Gyroscopic rigidity.

Gyroscopic stiffness is the force that prevents a gyroscope's orientation from changing. Additionally known as gyroscopic rigidity. This characteristic results from the spinning wheel's angular momentum, which opposes any shift in orientation. In order to maintain a stable path, gyroscopic stiffness is crucial for the operation of huge vehicles like ships, planes, and spacecraft. Other gyroscopic devices and machinery, such compasses and other navigational tools, as well as vibration dampening, make use of gyroscopic stiffness.An instrument used to determine or maintain orientation and angular velocity is a gyroscope. It is a spinning wheel or disc where the spin axis is unrestricted in its orientation choices. According to the law of conservation of angular momentum, while the mounting is rotating or tilting, the orientation of this axis is unchanged.

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if you had 4.0 moles of hydrogen, how many moles of oxygen would i need to completely react the hydrogen?

Answers

To completely react the hydrogen, you would need twice the number of moles of oxygen. This is because hydrogen and oxygen react in a 1:2 ratio to form water (H2O).

So, if you had 4.0 moles of hydrogen,

you would need 2 x 4.0 = 8.0 moles of oxygen

to completely react the hydrogen.

Since the atomic weight of oxygen is 16, one mole of oxygen atoms weighs 16 g and includes 6.02 X 1023 atoms of oxygen.

Although more useful quantities like mole per litre (mol/L) are employed, the standard SI unit is mol/m3.

Chemists employ the mole, a highly significant unit of measurement. Like a dozen eggs implies twelve eggs, having a mole of anything indicates you have 602,214,076,000,000,000,000,000 of that item. For extremely tiny objects like atoms, molecules, or other particles, chemists must quantify using moles.

The symbol for the unit is mol.

The number of moles formula is written as follows.

The formula for moles is.

Mass of material / Mass of one mole equals the number of moles.

95 / 86.94 equals the number of moles.

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What happens to one of the
neutrons in a carbon-14 nucleus?

Answers

Answer: Because carbon-14 has six protons, it is still carbon, but the two extra neutrons make the nucleus unstable. In order to reach a more stable state, carbon-14 releases a negatively charged particle from its nucleus that turns one of the neutrons into a proton.

select the complete ionic equation for the reaction between hcl and naoh.

Answers

The answer is H+(aq) + Cl(aq) + Na+(aq) + OH(aq) H2O(l) + Cl(aq) + Na(aq) according to the question.

Is an action a response?

Reaction a behavior, emotion, or action that is an direct outcome of another conduct: When I tell people who I am, I like seeing their emotions. The government to make tax rises have received an instant, broad, and negative response.

How do simple reactions work?

Simple response time (SRT), which is the shortest amount of time required to process a stimuli, is a fundamental indicator of processing speed. Francis Galton was the first to quantify SRTs, and he found that young participants had visual SRT latencies of less than 190 ms.

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would you predict the energy difference between a secondary and a tertiary carbocation to be more or less than 27 kcal/mole?

Answers

Prediction of the exact energy difference between a secondary and tertiary carbocation is impossible.

It is not possible to predict the exact energy difference between a secondary and tertiary carbocation with certainty, as it can vary based on several factors such as the structure and stability of the carbocations, solvent effects, and other environmental factors.

However, it is generally accepted that tertiary carbocations are more stable than secondary carbocations, which in turn are more stable than primary carbocations.

This stability is due to hyperconjugation and other stabilizationizing mechanisms, which contribute to a decrease in the energy of the system.

The exact energy difference between secondary and tertiary carbocations can therefore be less than 27 kcal/mol, but the exact value would depend on the specific circumstances.

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PLS HELP WILL GIVE BRAINLIEST!!!!

Fe2O3 + 3 CO -> 2 Fe + 3 CO₂

a) What is the mole ratio of Fe to CO?
b) What is the mole ratio of CO₂ to Fe₂O3?
c) How many moles of Fe are produced from 1.8 moles of Fe₂O3?
d) How many moles of Fe₂O3 are needed to produce 7.14 mol CO₂?
e) How many moles of CO are needed to produce 0.315 mol Fe?

Answers

Mole is one of the International System of Units' seven foundation units (SI). Therefore, the mole ratio of Fe to CO in the reaction Fe[tex]_2[/tex]O[tex]_3[/tex]+ 3 CO [tex]\rightarrow[/tex] 2 Fe + 3 CO₂ is 2:3.

What is mole?

A mole is merely a measuring unit. In reality, it is one of the International System of Units' seven foundation units (SI). When basically determines are insufficient, new units are created.

Chemical reactions frequently occur at levels that use grams would be inappropriate, but using actual figures of atoms/molecules/ions would also be misleading. As a result, scientists devised the moles to bridge the divide among extremely small and extremely huge numbers.  The mole ratio of Fe to CO in the reaction Fe[tex]_2[/tex]O[tex]_3[/tex]+ 3 CO [tex]\rightarrow[/tex] 2 Fe + 3 CO₂ is 2:3.

Therefore, the mole ratio of Fe to CO in the reaction Fe[tex]_2[/tex]O[tex]_3[/tex]+ 3 CO [tex]\rightarrow[/tex] 2 Fe + 3 CO₂ is 2:3.

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the partial pressure of co2 gas above the liquid in a carbonated drink is 0.938 atm. assuming that the henry's law constant for co2 in the drink is that same as that in water, 3.7 x 10-2 mol/l atm, calculate the solubility of carbon dioxide in this drink.

Answers

The solubility of CO2 in the drink is: Solubility of CO2 = 3.5 x 10-2 mol/L

The solubility of carbon dioxide in the drink can be calculated using Henry's Law, which states that the solubility of a gas is directly proportional to its partial pressure. The solubility of CO2 in the drink can be calculated as follows:

Solubility of CO2 = Henry's Law Constant x Partial Pressure of CO2

Therefore, the solubility of CO2 in the drink is:

Solubility of CO2 = 3.7 x 10-2 mol/L atm x 0.938 atmSolubility of CO2 = 3.5 x 10-2 mol/L

To further understand the solubility of carbon dioxide in the drink, it is important to consider the temperature of the drink and its effect on the solubility of carbon dioxide. Generally, the solubility of a gas increases as the temperature decreases. This is due to the decrease in kinetic energy of the gas molecules, which reduces their ability to escape from the liquid.

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A 1.0-cm -diameter pipe widens to 2.0 cm , then narrows to 0.5 cm . liquid flows through the first segment at a speed of 4.0m/s .

Answers

The speed of the liquid in the second segment can be calculated using the equation of continuity, which states that the product of the cross-sectional area and the velocity of a fluid must remain constant along its path.

Hence, the velocity in the second segment can be found by [tex]v2 =[/tex][tex]v1 * (A1/A2)[/tex], where A1 and A2 are the cross-sectional areas of the first and second segments, respectively. Substituting the values, we get [tex]v2 =[/tex] [tex]4.0 m/s * (pi * (0.01^2) / pi * (0.02^2)) = 4.0 m/s * (0.01/0.04) = 4.0 m/s * 0.25 = 1 m/s[/tex].The speed of the liquid in the third segment can be found using the same method, which yields[tex]v3 = 4.0 m/s * (pi * (0.02^2) / pi * (0.005^2)) = 4.0 m/s * (0.04/0.000025) = 4.0 m/s * 1600 = 6400 m/s.[/tex]  The volume flow rate is given by the product of the cross-sectional area and the velocity of the fluid. Hence, the volume flow rate through the pipe can be found by [tex]Q = A * v[/tex], where A is the cross-sectional area and v is the velocity of the fluid. Substituting the values, we get [tex]Q = pi * (0.005^2) * 6400 m/s = 0.196 L/s.[/tex]

The complete question is:

A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. Liquid flows through the first segment at a speed of 4.0m/s. Q A:What is the speed in the second segment?m/s Q B:What is the speed in the third segment?m/s Q C:What is the volume flow rate through the pipeL/s?

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Nuclear Fusion

1. Describe/Explain nuclear fusion in detail for each stage of the sun's life cycle.

a. stellar nebula:

1) What elements are being fused?

2) What elements are being made?

b. average/medium sized star:

1) What elements are being fused?

2) What elements are being made?

c. red giant:

1) What elements are being fused?

2) What elements are being made?

d. red supergiant:

1) What elements are being fused:

2) What elements are being made?

2. DESCRIBE/EXPLAIN how the energy from the sun's nuclear fusion affects the Earth. (At least 3 ways)

Answers

a. Stellar Nebula:

The fusion process in a stellar nebula begins with the fusion of hydrogen atoms to form helium.

As the fusion continues, helium accumulates and eventually enough pressure and heat are generated to trigger the fusion of helium into heavier elements, such as carbon, nitrogen, and oxygen.

b. Average/Medium Sized Star:

In an average-sized star, hydrogen fusion continues and generates more heat and pressure, allowing for the fusion of heavier elements such as helium, carbon, and oxygen.

As the fusion process continues, heavier elements such as neon, magnesium, and silicon are produced, leading to the formation of heavier elements such as iron.

c. Red Giant:

In a red giant, the outer layers of the star expand and cool, exposing the core. The core then contracts and heats up, causing the fusion of helium into heavier elements such as carbon, nitrogen, and oxygen.

The fusion process in a red giant generates a large amount of energy and creates elements such as neon, magnesium, and silicon, as well as heavier elements.

d. Red Supergiant:

In a red supergiant, the core continues to contract and heat up, causing the fusion of heavier elements such as carbon, nitrogen, and oxygen.

The fusion process in a red supergiant generates a tremendous amount of energy and leads to the formation of elements such as neon, magnesium, and silicon, as well as even heavier elements.

What elements are being fused?

The energy from the sun's nuclear fusion affects the Earth in several ways:

Energy from the sun drives Earth's climate and weather patterns, including the water cycle and atmospheric circulation.Solar energy provides the energy for photosynthesis, which is the process that plants use to produce food and release oxygen into the atmosphere.The sun's energy also drives the Earth's magnetic field, which protects the planet from harmful solar radiation and particles.

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reggie puts a beaker of ice and water on a hot plate, and the ice slowly begins to melt as shown in diagram below. after a few minutes, only liquid water is in the beaker. eventually, the water becomes hot and boils. the liquid water changes to water vapor, which is a gas. how is the ice different from the water vapor that forms after the water begins to boil? a the ice has a higher temperature. b the ice has a lower boiling point. c the ice particles move faster. d the ice particles have less energy.

Answers

The ice is different from the water vapor that forms after the water begins to boil as the ice particles have less energy and they move slowly.

The ice has a lower boiling point. When the ice and water put on both the hot plate, the ice slowly takes up the heat and raises its temperature, melting the ice slowly. While the water slowly heats up and becomes vapor when it reaches its boiling point. The ice will melt faster as it has lower boiling point than water. Liquid water molecules are constantly travelling from one point to another, colliding into and sliding past each other. Water molecules in water vapor are spread apart and free to move. There is a lot of room between them.

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which of the following atomic symbols is not correctly named? group of answer choices ge - germanium mn - manganese s - sodium se - selenium all of the answers are correct

Answers

The following incorrect atomic symbol is s - sodium where the correct  atomic symbol of sodium is Na.

The stable isotope of sodium, sodium-23, has a nuclear spin of 3/2, a nuclear abundance of 100%, and a relative atomic mass of 22.989770. an elemental metal from the alkali group. Its atomic weight is 23, atomic number 11, and atomic symbol are Na. Na, derived from the sodium synonym natrium, is the chemical symbol for sodium. Sodium is a chemical element with the atomic symbols Na, 11, and 23. An alkali metal atom is one like sodium. In order to determine whether a person's sodium uptake levels are within normal ranges, sodium 24 is employed as an electrolyte tracer, whereas sodium 22 is used in nuclear medicine imaging for positron emission tomography. There are non-medical uses for sodium-24 as well.

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which type of carbon atom does not generate a signal in the dept-90 spectrum but gives a negative signal in the dept-135 spectrum?

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In the DEPT-135 spectrum, hydrogen-bonded carbon atoms produce a negative signal; whereas, in the DEPT-90 spectrum, they do not. They are known as "CH" or "methylene" carbons, depending on the type of carbon atom.

The distribution of energy, frequency, or wavelength of light, sound, or other types of electromagnetic radiation is depicted graphically in a spectrum. Physicists, chemists, astronomers, and physicians all employ spectra in a variety of disciplines. Due to their distinctive spectral properties, such as the recognisable emission lines in an atomic spectrum, spectra can be used to identify elements, compounds, and materials in physics. The structure and makeup of molecules, as well as their physical and chemical characteristics, are studied in chemistry using spectra. The composition and physical characteristics of stars, galaxies, and other celestial objects are investigated using spectra in astronomy. Additionally, spectra can be utilised in medical imaging to see inside organs and tissues, like in X-ray and

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the splitting of the nucleus of an atom into smaller components is classified as what type of change?

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The splitting of the nucleus of an atom into smaller components is classified as nuclear fission.

The process of nuclear fission involves the splitting of big atomic nuclei into several smaller atomic nuclei in order to release a significant quantity of energy. The nuclei are typically coaxed into absorbing neutrons as part of this process. Neutrons are the particle that are typically found in the atomic nucleus alongside protons. The human race has found a way to use this natural occurrence not just to generate electricity in the form of nuclear power plants but also to power nuclear weapons.

Nuclear fission is a type of nuclear transmutation, which means that the atoms that are used as the source material are not the same elements as the atoms that are produced as the resulting, or daughter, product. It is possible for the fission process to take place naturally as a form of radioactive decay; however, this occurrence is extremely uncommon, extremely slow, and is limited to very heavy chemical components.

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When 2.35Mg (OH)2 is added to 250.0mL of water, the temperature of the water raises from 20.5 degrees celsius to 36.0 degrees celsius. Calculate the molar enthalpy of solution

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When 2.35Mg (OH)2 is added to 250.0mL of water, the temperature of the water raises from 20.5 degrees Celsius to 36.0 degrees Celsius. The molar enthalpy of solution is 169,493.7.

What is the molar enthalpy ?

The term molar enthalpy is defined as the enthalpy of reaction for the formation of one mole of a compound from its constitutive elements in their standard states.

H = m × C × T.

Mass = 2.35Mg

C = 250.0

Temperature = 288.5K

By substituting these values in given equation, we get

H = 2.35 × 250 × 288.5

H = 169,493.7

Thus, the molar enthalpy of solution is 169,493.7.

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what are the units of k for a zeroth order reaction?

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A zeroth order reaction has a rate constant (k) that is measured in units of 1/time.

What is zeroth order reaction?

The rate of a zeroth order reaction is proportional to the rate constant and independent of the concentration of the reactants. This means that regardless of variations in the concentration of the reactants, the rate of a zeroth order reaction is constant.

The rate of reaction for a zeroth order reaction is written as:

Where [A] is the reactant A concentration and k is the rate constant, the equation is -d[A]/dt = k.

The rate constant for a zeroth order reaction can be used to calculate the rate of reaction at a specific temperature and pressure. It has reciprocal time units like 1/s, 1/min, or 1/hr.

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