Which of the following refers to the process of hydrolysis?A.) In hydrolysis, a molecule of water is released when two molecules are joined together.

B.) The end result of hydrolysis is a chain of molecules such as a polysaccharide.

C.) Water is needed for hydrolysis to take place.

D.) Hydrolysis is the process in which plants and animals create complex molecules such as carbohydrates and proteins.

Answers

Answer 1

Answer:

Water is needed for hydrolysis to take place is the statement that refers to the process of hydrolysis.

Hydrolysis is a chemical reaction consisting of the decomposition of complex organic and inorganic substances into simpler ones by the action of water.

In turn, in the hydrolysis process, the atoms that make up the water molecules form chemical bonds with the substance that reacts with water.

There are different forms of hydrolysis, depending on the substances that are made to react with water:

Acid-base hydrolysis where water splits into a hydroxyl ion (OH–) and a proton (H +).

Strong acid-weak base salt hydrolysis where the salt cation yields a proton to water to form a hydronium ion (H3O +).

Hydrolysis of weak acid-weak base salt, where the cation of the salt combines with the water releasing a hydronium ion (H3O +) and the anion of the salt (from the weak acid) combines with the water releasing a hydroxyl ion ( OH–).

Strong acid-strong base salt hydrolysis where almost no hydrolysis occurs, due to which the dissociation balance of water is not altered, the pH in this case will be neutral.

Therefore, we can conclude that water is needed for hydrolysis to take place is the statement that refers to the process of hydrolysis.

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Answer 2

Answer:

Answer:

The answer is: C.) Water is needed for hydrolysis to take place.

Explanation:

Hydrolysis is the process where a molecule of water react with another molecule and its result is the division of the molecule of water. The atoms of the molecule of water become part of other structures before the separation. Taking this into account, answer A is wrong, because there is no released of water, answer B is also wrong because the result is not neccesarily a chain of molecules, answer D is not true because it no referes to a process that involves plants and animals. Answer C is correct.

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Which one of the following choices is a simple sugar? A. Glucose
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OMG GLUCOSE !!! i know this because im learning this right now in class :)

An atom in an excited state has an electron configuration of 2-7-2. Explain in terms of subatomic particles, why the excited atom described is electrically neutral.

Answers

The excited atom can be described as electrically neutral because from its electron configuration ;

The number of electrons ( 11 ) = Number of protons ( 11 )

From the electron configuration 2-7-2 the number of electrons equals ( 2 + 7 + 2 ) = 11 electrons, also the number of protons will be = 11 for the atom to be neutral. While the number of Neutron is not significant in the positivity or negativity of atoms.

The subatomic particles contained in an atom are protons, neutrons and electrons ( which are present in the outer most shell ) and represents the electron configuration of an atom. while the number of neutrons is determined by the Isotope.

Hence we can conclude that The excited atom can be described as electrically neutral because from its electron configuration ; The number of electrons = Number of protons .

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Answer:

Number of electrons: 11

Number of protons: 11

Number of neutrons : not enough information.

Explanation:

an atom contains sub atomic particles electrons, protons and neutrons.

Electrons are present in the outer shells.

The given atom contains eleven electrons.

The atom is neutral so the number of electrons will be equal to number of protons. The number of protons will be 11.

The number of neutrons will depend upon the type of isotope.

Bronze contains 90 to 95 percent copper and 5 to 10 percent tin. Because these percentages can vary, bronze is classified as(1) a compound (3) a mixture
(2) an element (4) a substance

Answers

Answer: a mixture.

Justification:

1) Pure substances have a definite chemical formula: the same kind of atoms with the same fixed ratios and chemical bonds. Therefore, the percents of each element do not varye.

2) Elements and compounds are pure substaces. For example, Fe, Mg, Ti, are elements, and CO₂, CO, H₂CO₃ are compounds. Each of them will have always the same kind of atoms, in the same ratio and with the same chemcial bonds. Therefore the percents of the elements do not varye.

3) Mixtures are formed by the physical combination (not chemical bonds) of different elements or compounds in variable proportions. As indicated, this describes the material bronze, in virtue of the variation of its composition. Other examples of mixtures are solutions (like brines), air, ocean water, and milk: different brines, different oceans and different milk have different contents of elements or compounds.

Answer:

(3) a mixture

Explanation:

Castle learning

A 25.5 liter balloon holding 3.5 moles of carbon dioxide leaks. If we are able to determine that 1.9 moles of carbon dioxide escaped before the container could be sealed, what is the new volume of the container?

Answers

Answer: The new volume of the container is 13.8 L

Explanation:

To calculate the new volume of the system, we use the equation given by Avogadro's Law. This law states that volume of the gas is directly proportional to the number of moles of the gas at constant pressure.

Mathematically,

$(V_1)/(n_1)=(V_2)/(n_2)$

where,

$V_1\text{ and }n_1$ are the initial volume and moles of the gas.

$V_2\text{ and }n_2$ are the final volume and moles of the gas.

We are given:

$V_1=25.5L\nn_1=3.5\nV_2=?\nn_2=1.9$

Putting values in above equation, we get:

$(25.5)/(3.5)=(V_2)/(1.9)\n\nV_2=13.8L$

Thus the new volume of the container is 13.8 L

Which of the following is not produced by nuclear decay?A) Alpha particles
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Answers

The answer is D. Delta particles.

Currently, there are three main types of nuclear decay: alpha decay, beta decay, and gamma decay. All three involve the emission of certain radioactive particles from the nuclear decay of an unstable atom. These particles are the alpha particles, beta particles, gamma rays, and conversion electrons.

Which explains why the lawsmotion are scientific laws?
O A. The theories of motion became laws after there was enough
evidence to prove they were true.
O B. The laws cannot be tested by experiments, but scientists know
that they are correct because they make sense mathematically.
c. The laws explain how objects move and are supported by
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O D. The laws describe a wide range of observations of motion and can
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Did

Answers

Answer:

Explanation:

Scientific laws describe how things work with little to no exception. They do NOT provide an explanation to WHY something occurs.

Answer:

The answer is D because scientific laws describe how things work not why they happen.

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