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Equilibrium Intro

Last updated 2 months ago

4 questions

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1

1

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Question 1

1.

What does chemical equilibrium refer to in a reaction?

Reactants and products are equal in amount.

All reactants are completely converted to products.

Rates of forward and reverse reactions are equal.

Reaction stops completely and no more changes occur.

Question 2

2.

In a system at equilibrium, what is true?

The concentrations of reactants and products are constant.

Reactants are used up and products remain.

No energy changes occur during the process.

Equilibrium only occurs in closed systems.

Question 3

3.

When a system at equilibrium is disturbed, it?

Shifts to counteract the disturbance and restore balance.

Always moves toward the reactants exclusively.

Immediates a complete stop of all reactions.

Only alters the concentrations of solids present.

Question 4

4.

Examine the following reaction:
H2 + I2 <-> 2HI

If more H2 was added to the system which way to you think the reaction will shift?

Left (towards reactants)

Right (toward porducts)

Neither, it will stay at equilibrium 