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3 years ago

Which reaction can provide the energy needed to run an endergonic reaction?

Chemistry

1 answer:

sveta [45]3 years ago

8 0

Answer:

Coupling reaction such as hydrolysis of ATP provide the energy needed to run an endergonic reaction.

Explanation:

The endergonic reactions are non spontaneous and thermodynamically unfavorable because the free energy change for those reactions are positive.

To make this reaction spontaneous and thermodynamically favorable the reaction which is endergonic is coupled with hydrolysis of ATP that generate huge amount of free energy thus making the free energy change of the overall reaction negative.

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What is the base dissociation constant for a weak base at equilibrium, B + H2O <===> BH+ + OH–?

podryga [215]

Depends on what the base is. You would reference the base dissociation chart for that value.

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A bulb is added to a circuit. When you place your hand near the bulb, it feels warm. The bulb in the circuit would most accurate

alex41 [277]

Answer:

C energy source

Explanation:

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Which is an expression?<br> A. 1 = 3 - 2<br> B. 2 + 5 = 5 + 2<br> C. 4+ 3 < 9<br> D. 26

Helga [31]

Answer:

A. 1 = 3 - 2

Explanation:

What defines an expression?

expression - An expression is a sentence with a minimum of two numbers and at least one math operation. This math operation can be addition, subtraction, multiplication, and division.

So if we look at the letter options we can see that A is the best choice.

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The law of conservation of mass states that mass is neither created nor destroyed during a chemical reaction. This can be gleane

GenaCL600 [577]

Answer : The total mass of oxygen gas released in the reaction will be, 12.8 grams

Explanation :

Law of conservation of mass : It states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

The balanced chemical reaction will be,

$2MgO\rightarrow 2Mg+O_2$

According to the law of conservation of mass,

Total mass of reactant side = Total mass of product side

Total mass of $2MgO$ = Total mass of $2Mg+O_2$

or,

Total mass of $2MgO$ = Mass of $2Mg$ + Mass of $O_2$

As we are given :

Total mass of $MgO$ = 16.12 grams

The mass of $Mg$ = 9.72 grams

So,

Total mass of $2MgO$ = Mass of $2Mg$ + Mass of $O_2$

$2\times 16.12g=2\times 9.72g+\text{Mass of }O_2$

$\text{Mass of }O_2=32.24g-19.44g=12.8g$

Therefore, the total mass of oxygen gas released in the reaction will be, 12.8 grams

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3 years ago

Explain what happens to temperature and energy as molecules move from gas to liquid to solid

aleksley [76]

Answer and Explanation:

As the temperature of the substances increases, the average energy of the molecules increases, and average energy of attraction between the molecules decreases consequently intermolecular spacing between the molecules increases. As a result, a substance change in succession from gas to liquid to solid.

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3 years ago