Effect of concentration change on equilibrium

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Chemistry, Science, Physics
•
10th Grade - University
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the concentration of a substance when it is added to an equilibrium mixture?
It decreases.
It remains unchanged.
It becomes zero.
It increases.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example of hydrogen iodide formation, what is the effect of adding hydrogen gas to the equilibrium mixture?
The concentration of iodine gas decreases.
The concentration of hydrogen iodide decreases.
The concentration of hydrogen gas decreases.
The concentration of hydrogen gas increases.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What principle is applied to restore equilibrium when stress is introduced to a chemical reaction?
Dalton's Law
Avogadro's Law
Le Chatelier's Principle
Boyle's Law
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to Le Chatelier's Principle, how does a reaction respond to an increase in reactant concentration?
The reaction shifts to the left.
The reaction shifts to the right.
The reaction remains unchanged.
The reaction stops completely.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of the forward reaction occurring in the hydrogen iodide formation example?
The concentration of products decreases.
The concentration of reactants increases.
The equilibrium is restored.
The equilibrium is permanently disturbed.
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