The binder found in high-fiber foods that inhibits the absorption of iron and zinc is oxalic acid Choose raw fruits and vegetables instead of juice, and consume the peels. Alternative fiber sources include whole buckwheat, whole wheat couscous, quinoa, bulgur, wheat germ, chia water seeds, hemp seeds, lentil pasta, and edamame pasta.
Popcorn is a complete grain. Serve it low-fat and without butter for a healthy snack option. It is a white crystalline substance that dissolves colorlessly in water. It got its name from the fact that early researchers obtained oxalic acid from blooming plants of the genus Oxalis, sometimes known as wood-sorrels.
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When you do a load of laundry, why do you not just drop a bar of soap into the washing machine? in other words, why is laundry detergent sold as a liquid or powder?
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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An a-t base pair consists of _____ h-bond(s); a c-g base pair consists of _____ h-bond(s).
An a-t base pair consists of 2 h-bond(s); a c-g base pair consists of 3 h-bond(s). The correct option is E.
What are base pairs?
Base pairs are the pairs that are made up of nucleotides. They are pairs of DNA bases. The base pairs are connected with each other by hydrogen bonds.
In between adenine and thymine, there are two or double hydrogen bonds present and between cytosine and guanine, there are triple bonds present.
So, there is 2 hydrogen bonds and triple hydrogen bonds in the base pairs of DNA, the genetic material.
Thus, the correct option is E, 2, 3.
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The question is incomplete. Your most probably complete question is given below:
A. 1, 2.
B. 2, 1.
C. 2, 2.
D. 3, 2.
E. 2, 3.
If a resident drinks four ounces of water with a meal, how many milliliters (ml) has he consumed?
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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Pepsin can begin the digestion of protein in the stomach after it is converted from pepsinogen by?
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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Given the following electronic configuration of a neutral atom: [ar]4s13d10 , what is the element and the number of unpaired electrons in its ground state?
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 is 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 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.
Why is electronic 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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When light waves change direction as they travel from one material to another ________ occurs.
A. Refraction
B. Eclectromagnetic
C. Wavelength
D. Reflect
E. Translucent
Answer:
A. Refraction
Explanation:
Refraction is the redirection of a wave as it passes from one medium to another.
A first-order reaction that results in the destruction of a pollutant has a rate constant of 0.1/day. how many days will it take for 68 percent of the chemical to be destroyed?
In a first-order reaction, it takes 23.02 days for 68 percent of the chemical to be destroyed.
Given,
fee constant for the destruction of pollutant = 0.1/day
We ought to discover the number of days it'll take for sixty eight percent of the chemical to be destroyed.
[A] = [A]₀e^⁻kt
in which [A] is the present awareness, and
[A]₀ is the initial awareness
k is the price of decrement
[A]₀ = 1
[A] = 0.1
Or, t =㏑(10)/k
Or, t = 2.302/zero.1
Or, t = 23.02 days.
for this reason the wide variety of days required for the destruction of sixty eight percent of chemicals is 23 days.
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The molecular weight of ethanol ( c2h5oh ), the alcohol in alcoholic beverages, is ________ amu (rounded to one decimal place). 46.1 45.1 9.0 29.0 26.0
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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When atp is hydrolyzed to power a condensation reaction, what happens to the phosphate molecule that is released?
The phosphate molecule that is released it is coupled to a different ADP molecule to make new molecule of ATP.
Hydrolysis of high-energy compound (ATP) using water:
ATP + H₂O → ADP + Pi
ATP is short for adenosine triphosphate.
Hydrolysis is a reaction that breaks down the chemical bonds between molecules via the addition of a water molecule.
A condensation reaction is a reaction that joins two molecules in a chemical bond.
ATP is resynthesized in a condensation reaction that adds an inorganic phosphate group to ADP. The addition of a phosphate group is catalyzed by the enzyme ATP synthase.
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ASAPP!!! CHEM HW HERE
chelsea went ice-skating. the ice, her skates, the zamboni, and the rink building itself were all examples of solids she encountered. she developed a model of the particles in the ice. which of these statements about the particles present in her model of a solid are true? choose the three statements that apply.
The three statements about a model of the particles in the ice:
They vibrate in place.
They are packed very closely together.
They cause the solid to have definite volume and definite shape.
For example, chemical compound water (H₂O) is liquid. Molecules of water are not rigid as in solid state (ice) and can move. In solid state (in this example ice) movement of molecules is more slow than movement of molecules in liquids (for example water).
Solids have fixed shapes and volumes because particles occupy a fixed position in the crystal lattice.
Strong cohesive forces keep particles (molecules, atoms, or ions) in place, with little void spaces, resulting in very low compressibility and thermal expansion.
Solids have high density that varies very little with temperature.
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What multiplicities are observed for the signals in the off-resonance decoupled 13c nmr spectrum of 2-chloropropene?
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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What is the definition of Buffer solution !!
Answer:
a solution which resists changes in pH when acid or alkali is added to it is known as Buffer solution
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(n)?
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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How many 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?
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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A package of chocolate instant pudding contains 2640 mg of sodium. how many grams of sodium are in the pudding?
Answer:
2.640
Explanation:
Rounding to the nearest whole number would be 3 if that is needed.
Notice that in the last problem you calculated the grams of oxygen needed. what would the volume of this oxygen be at stp? report your answer in liters to the nearest whole number.
The volume of oxygen required at STP is 7 L.
STP is a pressure of a hundred kPa and a temperature of 273.15 k. Or, 1 mole of any perfect gasoline occupies 22.7 L at STP.
therefore, we need to discover the range of moles of oxygen required within the reaction.
using the molar mass of water,
10.five g × 1 mole of water/ 18.02 g = 0.577 moles of water.
1: 2 is the ratio between oxygen and water in a water molecule, because of this 1 mole of oxygen produces 2 moles of water.
0.577 moles of H₂O × 1 mole O₂ / 2 moles of H₂O = zero.2885 moles O₂.
So, if 22.7 L at STP is occupied via 1 mole, then
zero.2885 × 22.7 L / 1 mole = 6.548 L
Rounded to the nearest entire wide variety, we get 7 L.
consequently, the quantity of oxygen at STP is 7L.
standard temperature and strain (STP) is described as 0oC (273.15K) and 1atm strain. The molar extent of a gasoline is the extent of 1 mole of a fuel at STP . At STP, one mole (6.02×1023 representative debris) of any gasoline occupies a volume of twenty-two.4L
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Where corrosion protection is necessary and the conduit is threaded in the field, the threads must be coated with a(n) ______, electrically conductive, corrosion-resistance compound.
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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For a polymerization reaction with a termination step, what is the shortest material there in highest concentration?
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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formula for chlorine reacting with lithium and carbon
How do you prepare 40 ml of a 2 mg/ml protein solution from 10 mg/ml protein solution?
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.
What is concentrated protein?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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1. 34g of CaCO3 was heated and decomposed completely. The reaction equation is shown below.
CaCO3(s) --> CaO(s) + CO2(g)
1.1 calculate the number of moles of CaCO3 that decomposed
1.2. Calculate the number of particles of CaO that can be produced
The number of particles produced is 8.1 * 10^21 particles.
What is number of 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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3. draw the lewis structure for these anions. each anion is a conjugate base of an acid. (e) hco3─ (h attached to one of the o’s) (f) so32─
The lewis structure for these anions are-
a fairly straightforward manner to visualize a molecule's valence shell electrons is through a Lewis structure. It gives insight into the pairing and association of the electrons surrounding every atom in the molecule.
every electron inside the Lewis dot structure can be represented via a dot, and a line connecting the dots is drawn to shape an electron bond.
simplest the valence electrons are taken under consideration whilst sketching the Lewis dot shape, ignoring the electrons that don't belong to the outermost shell.
The Lewis shape is the most effective and maximum constrained speculation; it does no longer describe how bonds are created or how electrons are disbursed most of the atoms. And that is visible as the essential constraint at the Lewis shape.
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What cellular component is responsible for energy production and metabolic processes?
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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The specific heat of ethanol is 2.46 J/gºC. Find the heat energy required to raise the
temperature
of 193 g of ethanol from 19°C to 35°C
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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Identify the pure substance among the following:
sugar
iron ore
sugar solution
saline solution
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
How much agco is formed when 25.0 ml of 0.200 m agno is mixed with 50.0 ml of 0.800 m naco?
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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pls help me?
list 5 items that have evolve overtime
In the mass spectrum of pentane, the presence of a peak with m/z = 57 is most likely to the detection of:?
In the mass spectrum of pentane, the presence of a peak with m/z = 57 is most likely to the detection of a butyl radical cation.
What does the mass spectrum of pentane look like at the molecular level?Because all molecular ions fragment, a few compounds have mass spectra that lack a molecular ion peak. That is not a problem you will encounter at A'level. In the mass spectrum of pentane, for example, the heaviest ion has an m/z value of 72.
In pentane, what is the m/z of the fragment ion?Lines with m/z values one or two lower than one of the simple lines, for example, are frequently caused by the loss of one or more hydrogen atoms during the fragmentation process. The base peak (the tallest peak and thus the most common fragment ion) is at m/z = 57 this time. This, however, is not produced by the same ion as the pentane m/z value peak.
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Scientists use the theory of plate tectonics to understand the reasons volcanoes develop in
certain locations. how does this show the validity of the theory?
a.the scientists are using observations.
b.the scientists are making predictions.
c.the scientists can see the plates moving beneath the volcano.
d.the scientists are repeating the experiments .
Scientists use tectonics plates to understand the plates moving beneath the volcano.
What are tectonic plates?
According to the widely recognized scientific hypothesis known as plate tectonics, the Earth's lithosphere is made up of many sizable tectonic plates that have been steadily moving for nearly 3.4 billion years. Our globe would look drastically different if it weren't for plate tectonics. We have a stable climate, mineral and oil deposits, and oceans with a chemical balance that supports life thanks to the continuous recycling of the Earth's crust. Even now, every few hundred million years, it offers evolution a boost. The plates fit tightly against one another and sit on the heated, molten rock of the Earth's mantle like fragments of a broken shell. The plates move as a result of the heat produced by nuclear processes occurring inside the planet.
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