2023-24 Chap 7D Study Questions "Reaction Rates and Equilibrium"

Which of the following is not part of the collision model for affecting reaction rates?

• Catalysts must be present to increase the reaction rate

• Enough energy must be present

• Reactant particles must be aligned properly

• Reactant particles must collide

Which of the following would most likely increase the reaction rate of a chemical reaction?

• dividing a large reactant into smaller pieces

• lowering the temperature

• preventing any stirring from occurring

• reducing the concentration of the reactants

Tags

NGSS.HS-PS1-5

Which of the following decreases the rate of a chemical reaction?

• a catalyst

• an enzyme

• an inhibitor

• a reduction

Tags

NGSS.HS-PS1-5

When a system reaches chemical equilibrium, the forward and the reverse reactions stop.

• True

• False

According to Le Chatelier's principle, systems in equilibrium cannot be changed.

• True

• False

Adding reactant to a chemical reaction will move the equilibrium state toward or away from the products?

• toward

• away from

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

For a reverse reaction to occur, the product(s) must remain

• in constant motion

• contained

• pure

• uncatalyzed

Once a system is in equilibrium, changes to the system cannot alter the equilibrium state.

• True

• False

Tags

NGSS.HS-PS1-6

Which of the following is not a factor affecting chemical equilibrium?

• Temperature

• Pressure

• Concentration

• Specific Gravity

Tags

NGSS.HS-PS1-6

The speed of a reaction is called its

• Rate of Equilibrium

• Reaction Rate

• Catalyst Rate

• Rate of Change

Tags

NGSS.HS-PS1-5