Enter the molecular equation representing aqueous acetic acid neutralized by aqueous barium hydroxide. express your answer as a balanced molecular equation. identify all of the phases in your answer.

The given element has 18(Ar)+1+5=24 electrons i.e., the element is Cr. Thus the Cr atom has 6 unpaired electrons.

In atomic physics and quantum chemistry, the electron configuration refers to how an atom's or molecule's electrons are arranged in their respective orbitals.

The placement of electrons in orbitals surrounding an atomic nucleus is known as electronic configuration, also known as electronic structure or electron configuration.

The electron configuration is used to describe an atom's ground state orbitals, but it may also be used to depict an atom that has ionised into a cation or anion by making up for any lost or gained electrons in the orbitals after it.

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The given element has 18(Ar)+1+5=24 electrons i.e., the element is Cr.

Thus the Cr atom has 6 unpaired electrons.

What's electronic configuration?

In atomic physics and quantum chemistry, the electron configuration refers to how an atom's or molecule's electrons are arranged in their respective orbitals.The placement of electrons in orbitals surrounding an atomic nucleus is known as electronic configuration, also referred to as electronic structure or electron configuration.

Commonly, the electron configuration is employed to describe the orbitals of an atom in its ground state, but it also can be used to represent an atom that has ionized into a cation or anion by compensating with the loss of or gain of electrons in their subsequent orbitals.

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To dilute the concentrated protein solution to make 40mL of a 2mg/mL solution, take 8mL of the concentrated stock and add 32mL of solvent.

Unattached or attached to an atom, an electron is a negatively charged subatomic particle (not bound). One of the three main types of particles inside an atom, along with protons and neutrons, is an electron that is linked to the atom.

An atom's nucleus is made up of electrons, protons, and neutrons. The positive charge of a proton balances out the negative charge of an electron. An atom is in a neutral state if its protons and electrons are equal in number.

They have a mass that is considerably lower, exist outside of the nucleus, and display both wave- and particle-like properties. Since an electron is also a fundamental particle, it is unreinforced and unbroken.

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The number of particles produced is 8.1 * 10^21 particles.

The equation of the reaction is; [tex]CaCO3(s)-- > CaO(s) + CO2(g)[/tex]. We can be able to obtain the number of moles of the calcium carbonate can be obtained from;

Mass = 1.34 g

Molar mass = 100g

Number of moles =  1.34 g/ 100g = 0.0134 moles

Thus, the number of moles of carbonate that decomposed is  0.0134 moles

Given that the reaction is 1:1 and there are 6.02 * 10^23 particles in 1 mole of CaO, the number of particles of  CaO produced is;

0.0134 moles *  6.02 * 10^23 particles = 8.1 * 10^21 particles

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The receptor in blinking is receptors present in eyes and the effectors are the muscles in the eyes that cause the eye to contract and thereby encourages blinking of eye.

Receptors are the organs responsible for receiving external stimuli and transmitting them to the Central Nervous System. Effectors are the organs that carry out the central nervous system's instructions in response to external stimuli.

All receptors are essentially supplied by sensory nerves that can carry the stimulus to the CNS. Effectors are primarily supplied by motor nerves, which are capable of carrying instructions from the CNS.

Skin, eye, ear, nose, and tongue are all examples of receptors. Effectors are either muscles or glands.

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Matter can be classified as element and mixture is a false statement.

Physical and chemical qualities are present in all matter. Physical qualities, such as mass, color, and volume, are characteristics that may be measured by scientists without modifying the makeup of the sample being studied (the amount of space occupied by a sample). Chemical characteristics, such as flammability and susceptibility to corrosion, define a substance's distinctive capacity to reacted to generate new substances. A pure substance's chemical and physical properties are the same in all samples. For instance, pure copper always forms a solid that is reddish-brown in color and dissolves in diluted nitric acid to form a blue solution and a brown vapor (a chemical property).

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19 ml of a 5m solution of sodium borate must be added to a 200 ml solution of 50mm boric acid in order for the ph to be 9.6

Here pH=Pka-log[A]/[B]

= 9.6=9.24-log[A]/[B]

= log[A]/[B]=-0.36

Here for ml molarity formula is used

Molarity=mass/volume here mass of sodium borate is 381g/mol and volume of solution is 200ml

mass/volume=381/200=1.905/5.0×50=19ml

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percentage of zinc= 5.985/20 X 100= 29.5%

let x represents zinc and y be magnesium so

Zinc(s) + 2HCl(aq) -----> ZnCl2(aq) +  H2(g)

Mg(s) + 2HCl(aq) -----> MgCl2(aq) + H2(g)

1.152 g of hydrogen gas=( x/65.3 + y/24.305) 20

= 3.08 x10^-2 + 0.8295-8.30

=x=5.985

y= 4.015

percentage of zinc= 5.985/20 X 100= 29.5%

The hydrogen gas escapes, so the two products of Zinc Chloride and Magnesium Chloride will then react with Silver Nitrate. Again, I combine both of the reactions

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If placed into a water-filled overflow, it would displace 18.84 ml.

Overflowing means to flood something to the point where the liquid spills out the edges. Rivers occasionally exceed their banks after intense downpours, flooding the surrounding area.

Density is the measurement of how tightly a substance is packed. It has such definition since it is the mass per unit volume.

Symbol for density: D

Formula for Density: Where is the density, m is the object's mass, and V is its volume, the equation is: = m/V

based on the specified value;

density=65g/ml

mass=1225g

as we know that

D=m/v

so, v=m/d

v=1225/65

 =18.84ml

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For a polymerization reaction with a termination step, what is the shortest material there in highest concentration is monomer.

A polymer is a large single chain-like molecule in which the repeating units derived from small molecules called monomers are bound together.  process by which monomers are transformed into a polymer is called polymerization. it helps to produce new chemicals like glycogen, cellulose, fatty acids etc. the termination step involves the reaction of a polymer chain radical with another free radical. These three steps constitute the normal step-growth polymerization process. the polymer concentration is associated with solution viscosity, which increases with the increase of the polymer concentration and then leads to a larger fiber diameter. if concentration is too low, continuous polymer fibers cannot be achieved.

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The correct answer is 7596.5 Joules of heat energy is required to raise the temperature of 193 g of ethanol from 19°C to 35°C.

The amount of heat required is calculated as follows:

Q = mC∆T

m = mass =193g of ethanol

C = specific heat = 2.46J/g°C

∆T = T f-Ti = 35-19°C = 16°C

Q = 193g *2.46J/g°C *16°C

Q = 7596.5 J

We are interested in the value of Q, which is the quantity of heat. We would use the equation Q = mCΔT to do so.  mass and specific heat  are known; using the initial and final temperatures, the T can be calculated. Once we know three of the four quantities in the relevant equation, we can substitute and solve for Q. The amount of heat energy required to raise the temperature of a substance is referred to as its specific heat energy.

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Answer: C. UVA rays cause premature aging and UVB rays cause burning

Explanation: Ultraviolet radiation causes DNA changes in the skin, leading to premature aging and skin cancer. There are three kinds of UV light: UVA light. This form of solar radiation damages skin at all levels—from the surface layer (epidermis) down deep into the dermis.

If a resident drinks four ounces of water with a meal, 120 mL has he consumed.

Water is a clear, thin liquid that, in its pure state, has no color or taste. Rain falls from the clouds and flows into rivers and oceans. All animals and humans need water to live. Give me a glass of water. Essential water requirement means the minimum amount of water required for residential and commercial purposes for food processing, drinking, flushing toilets, firefighting, and hospital use.

Store at room temperature. Lubricate and moisten the joints. Protects the spinal cord and other delicate tissues. Removes waste products from urination, perspiration and bowel movements. Most tap water in the United States comes from surface or groundwater. Spring water refers to bodies of water (rivers, streams, lakes, reservoirs, springs, groundwater, etc.) that feed public drinking water supplies or private wells.

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Answer:

Metals react with acids to form hydrogen gas with a pop sound and non metals do not react with acids. This is because a substance undergoing react with acids, donates electrons to the H+ ions produced by the acids. But non metals acceptor of electrons and hence they do not donate to the hydrogen ion of the acid. As a result they don't react with dilute acid but there are some exceptions.

There are 0.037 NaOH will be needed to raise the pH 6.09.

Henderson equation, convey the pH of a buffer solution as a purpose of the concentration of the weak acid or base and the salt constituents of the buffer.

Formula of Henderson equation

pH = pKa + log10 ([A] / [HA])

Basic buffer has a basic pH and is get ready by blend a weak base and its salt with powerful acid.

According to Henderson equation pH of basic buffer is:

pH + pNaOH = 5.0

6.09 + pNaOH = 5.0

pNaOH = 5.0 - 6.09

pNaOH =  log(1.09)

pNaOH = 0.037

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The organic compounds that are divided into two types, simple and complex, are called carbohydrates.

Carbohydrates are diveded into twy types: simple and complex (starches, fiber, glycogen).

Simple carbohydrates are made of one (monosaccaharides) or two sugar units.

Complex carbohydrates are made up of many sugar units.

For example, glucose (C₆H₁₂O₆) is a simple carbohydrate.

Glucose is chemical compound composed of six carbon atoms, twelve hydrogen atoms and six oxygen atoms.

Starch is a polymeric carbohydrate consisting of a large number of glucose units bonded by glycosidic bond. Starch is a white, tasteless and odorless powder that is insoluble in cold water or alcohol.

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The Ag[tex]_{2}[/tex]CO[tex]_{3}[/tex]   is formed when 25.0 ml of 0.200M AgNO[tex]_{3}[/tex] is mixed with 50.0 ml of 0.800 M Na[tex]_{2}[/tex]CO[tex]_{3}[/tex] is 0.68 g.

According the question , the chemical equation is give by :

2AgNO[tex]_{3}[/tex]   +   Na[tex]_{2}[/tex]CO[tex]_{3}[/tex]  ------->   Ag[tex]_{2}[/tex]CO[tex]_{3}[/tex]     +      2NaNO[tex]_{3}[/tex]

Given that :

volume of silver nitrate = 25.0 ml or 0.025 L

molarity M =  0.200 M

volume of sodium carbonate = 50.0 ml or 0.050 L

molarity = 0.800 M

now, no. of moles of silver nitrate  =  0.025 × 0.200 = 0.005 moles

no. of mole of sodium carbonate = 0.050 × 0.800 =  0.04 moles

the no. of moles of silver carbonate ,  =  0.5 × 0.005

                                                                =  0.0025 moles

molar mass  of Ag[tex]_{2}[/tex]CO[tex]_{3}[/tex] = 275.7 g/mol

therefor, the mass of Ag[tex]_{2}[/tex]CO[tex]_{3}[/tex] =   0.0025 moles × 275.7 g/mol

                                                 =0.68 g

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Answer:

The volume that a 200 g gold sample would have is 10.36 mL.

Step-by-step explanation:

In this case it is known that the density of gold is 19.3 g / mL. This indicates that in 1 mL there are 19.3 g. Then the following rule of three can be applied: if 19.3 g is contained in 1 mL, how much volume is 200 g of gold?

volume= 10.36 mL

The cellular component responsible for energy production and metabolic processes is mitochondria.

What is Mitochondria?

A double-membrane-bound organelle known as a mitochondrion is found in the majority of eukaryotic organisms. The majority of the cell's adenosine triphosphate, which is then used as a source of chemical energy throughout the cell, is produced by mitochondria using aerobic respiration.

Oxidative phosphorylation, which produces ATP using the energy released during the oxidation of the food we eat, is the traditional function of mitochondria. For the majority of biochemical and physiological processes, including growth, mobility, and equilibrium, ATP is used as the main energy source in turn.

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A singlet, a triplet, and a quartet multiplicities are observed for the signals in the off-resonance decoupled 13c NMR spectrum of 2-chloropropene.

A phenomenon in which an external force or vibrating system causes another system around it to vibrate with greater amplitude at a particular operating frequency. The concept of resonance would be difficult to understand without an example. The resonance energy is defined as the difference between the electronic energy of the real (conjugated) molecule and the virtual Kekulé structure in which the bond is localized.

Resonance occurs when the frequency of the applied force is equal to one of the natural frequencies of vibration of the forced or driven harmonic oscillator. Swings, guitars, pendulums, bridges, and musical systems are examples of resonance in everyday life.

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Answer: Gas has loosely packed atoms, liquids have mediumly packed atoms, and solids have tightly packed atoms.

Explanation: Solids have tightly packed atoms which is what keeps them in their defined shape. They have a defined volume and a defined shape.

Liquids have mediumly packed atoms because liquids don't have a definite shape and take the shape of the container they are placed in. It has a definite volume, but an indefinite shape.

Gases have loosely packed atoms because gases can float around anywhere. They don't have a definite volume, and they don't have a definite shape.

Where corrosion protection is vital and the conduit is threaded in the field, the threads must be coated with a(n) Approved electrically conductive, corrosion-resistance compound.

What is corrosion protection?

A corrosion protection method may be a technique used to minimize corrosion such as the application of anti-corrosion coating, cathodic protection, or other methods that make metal resistant to corrosion.

Metal corrosion in most situations is usually slowed, managed, or maybe put to a stop utilizing the right techniques.

What does one mean by corrosion?

Corrosion may be a natural process which converts refined metal to their more stable oxide.It is the gradual destruction of materials {usually metals} by chemical reaction with their environment.In the most common use of the world, this suggests electrochemical oxidation of metals in reaction with an oxidant such as oxygen.

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Pepsin can begin the digestion of protein in the stomach after it is converted from pepsinogen by Hydrochloric acid (HCl)

Hydrochloric acid (HCl) converts the pepsinogen to pepsin. It breaks down the proteins into the peptides.

                    Pepsinogen ------HCl-----> Pepsin

HCl maintains a pH of 2.0 in the stomach.

Pepsin is a digestive enzyme which breaks down the protein in the stomach.

When pepsinogen and hydrochloric acid are present in the gastric juice together, pepsin takes its active form, because HCl is a very strong acid. It denatures the protein. It degrades the extra polypeptide of pepsinogen. This extra polypeptide covers the active site.

Chief cells of gastric regions secretes the enzyme pepsin in an inactive form called pepsinogen. A low pH of 1.5 to 2 activates pepsin.

Pepsin has many uses as it is used in the treatment of indigestion and pancreatitis. It helps in the digestion of food.

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Use integrated first order rate law, which give you the concentration of reactant sulfuryl chloride as function of time t:  

ln[SO₂Cl₂] = ln[SO₂Cl₂]₀ - k∙t  

([SO₂Cl₂]₀ i the initial concentration and k is the rate constant)  

=>  [SO₂Cl₂] = e^(ln[SO₂Cl₂]₀ - k∙t) = e^(ln[SO₂Cl₂]₀) ∙ e^( - k∙t)  

= [SO₂Cl₂]₀ ∙e^( - k∙t)  

The decomposition of SO₂Cl₂ follows the reaction equation  

SO₂Cl₂ → SO₂ + Cl₂  

So per mole of sulfuryl chloride disappeared one mole of sulfur dioxide is formed. Hence the changes in concentrations of these compounds are related as:  

-∆[SO₂Cl₂] = ∆{SO₂]  <=>  [SO₂Cl₂]₀ - [SO₂Cl₂] = [SO₂] - [SO₂]₀  

Assuming there was initially no sulfur dioxide you get for its concentration:  

[SO₂] = [SO₂Cl₂]₀ - [SO₂Cl₂]  

= [SO₂Cl₂]₀ - [SO₂Cl₂]₀ ∙e^( - k∙t)  

= [SO₂Cl₂]₀ ∙(1 - e^( - k∙t))  

after 210s starting with 0.150M of [SO₂Cl₂]  

[SO₂]= 0.150M ∙(1 - e^( - 1.48×10⁻⁴s⁻¹k ∙ 240s) =

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We use laundry detergent as a liquid or powder because powder and liquid detergents have more enzymes.

What is detergent?

When present in diluted solutions, a surfactant or combination of surfactants has the ability to clean.There are many different types of detergents; one popular family is the alkylbenzene sulfonates, which are soap-like substances that are more soluble in hard water because the polar sulfonate in detergents is less likely to bind to calcium and other ions found in hard water than the polar carboxylate in soap.

Detergents in both powder and liquid form contain additional enzymes and surfactants that break down grease and slime on clothing. Additionally, because the molecules of liquid and powder soaps can move more freely than those of solid bar soap, it is simpler for them to function as nonionic surfactants.

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Answer:

A. Refraction

Explanation:

Refraction is the redirection of a wave as it passes from one medium to another.

Answer:

Iron ore

Explanation:

Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel

Some liquid in a jar can be separated by physical means into two separate liquids, which can then be separated no further. The liquid is a mixture

What is a mixture?

Typically, a mixture is described as a fabric that is composed of  or greater separate chemical additives that are not chemically sure to each other.

The bodily mixture of some of substances wherein the characteristics of every factor are maintained as the components are combined into answers, suspensions, or colloids is known as a aggregate.

for this reason, it is feasible to bodily separate a number of the liquid in a jar into  awesome liquids, and then the drinks can now not be separated anymore.

therefore, the liquid in a jar is a combination.

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The molecular weight of ethanol, in the alcohol in alcoholic beverage, is 46.1 amu.

What is ethanol?

Ethanol is a substance derived from organic compounds. With the chemical formula C2H6O, it is an alcohol. EtOH, its chemical name, is also occasionally abbreviated as CH3CH2OH or C2H5OH. Alcohol is a highly flammable, colorless liquid with a strong wine-like odor and astringent flavor.

Pharmaceuticals, polymers, lacquers, polishes, plasticizers, and cosmetics are all made with ethanol. Ethanol is used in medicine as an antidote for methanol or ethylene glycol intoxication as well as a topical anti-infective.

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