
Equilibrium in Chemical Reactions

Interactive Video
•
Chemistry
•
10th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the term 'equilibrium' refer to in a chemical reaction?
A state where the reaction stops completely
A state where the concentrations of reactants and products remain constant
A state where only products are present
A state where reactants are completely converted to products
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the KC expression used for?
To calculate the speed of a reaction
To measure the pressure in a reaction
To determine the temperature of a reaction
To express the ratio of products to reactants at equilibrium
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In dynamic equilibrium, what is true about the rates of the forward and backward reactions?
Both rates are zero
Both rates are equal
The backward reaction rate is higher
The forward reaction rate is higher
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the position of equilibrium when the concentration of reactants is increased?
It shifts to the left
It shifts to the right
It remains unchanged
It becomes undefined
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to Le Chatelier's principle, how does a system at equilibrium respond to a change in concentration?
By stopping the reaction
By shifting the equilibrium position to counteract the change
By increasing the temperature
By decreasing the pressure
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect on KC when the concentration of reactants or products is changed?
KC increases
KC decreases
KC remains constant
KC becomes zero
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the concentrations of reactants and products when equilibrium is reestablished after a disturbance?
They both decrease proportionally
They become zero
They both increase proportionally
They remain the same as before
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