Chemistry: Quiz: Introduction to Equilibrium

Quiz: Introduction to Equilibrium

1. When both the forward and reverse reactions proceed at the same rate, the reaction is said to be at

a. completion

b. equilibrium

c. steady state

2. When a chemical reaction reaches equilibrium

a. the concentrations of reactants continue to change

b. the concentrations of products continue to change

c. the concentrations of reactants and products remain constant

3. Equilibrium will be affected by a change in

a. time

b. temperature

c. number of experimenters

4. Every chemical reaction has some point in which __________ is established.

a. equilibrium

b. completion

c. combustion

5. For many reactions, equilibrium occurs when essentially

a. all products are converted to reactants

b. all reactants are converted to products

c. 50% of the products are converted to reactants

6. At equilibrium, it is possible to calculate the

a. temperature of the reaction

b. time of the reaction

c. concentration of one or more species

7. The state of equilibrium is especially important in

a. solids

b. elements

c. solutions

8. Equilibrium is not a static situation, but a very

a. dynamic situation

b. exciting situation

c. unstable situation

9. When equilibrium is reached, the number of reactant particles and product particles

a. decreases

b. increases

c. remains the same