Rate of Reaction Quiz

What are the factors that affect the rate of a chemical reaction?

• Amount of sunlight, viscosity of reactants, moon phase

• Type of container, humidity, distance from the equator

• Color of reactants, pH level, time of day

• Temperature, concentration of reactants, surface area, presence of catalysts, and pressure

Tags

NGSS.HS-PS1-5

Matilda, Ava, and Samuel are conducting a chemistry experiment. According to collision theory, what needs to happen for their chemical reaction to occur?

• The particles of the reactants they are using must collide with each other in the correct orientation.

• The particles of the reactants they are using must collide with each other with insufficient energy.

• The particles of the reactants they are using must collide with each other with sufficient energy.

• The particles of the reactants they are using must not collide with each other.

How does concentration affect the rate of a chemical reaction?

• Increasing the concentration of reactants generally decreases the rate of a chemical reaction.

• Concentration has no effect on the rate of a chemical reaction.

• Decreasing the concentration of reactants generally increases the rate of a chemical reaction.

• Increasing the concentration of reactants generally increases the rate of a chemical reaction.

Tags

NGSS.HS-PS1-5

How does temperature affect the rate of a chemical reaction?

• Temperature has no effect on the rate of a chemical reaction.

• Temperature only affects the color of a chemical reaction.

• Temperature increases the rate of a chemical reaction.

• Temperature decreases the rate of a chemical reaction.

Tags

NGSS.HS-PS1-5

Thomas, Elsie, and Grace were conducting a chemistry experiment. They noticed that when they increased the concentration of reactants, something happened to the rate of reaction. What was it?

• The rate of reaction decreased.

• The rate of reaction remained the same.

• The rate of reaction increased.

• The rate of reaction became unpredictable.

Tags

NGSS.HS-PS1-5

Ella, Noah, and Matilda are conducting a chemistry experiment. If they decrease the temperature of the experiment, what happens to the rate of their reaction?

• The rate of reaction remains the same.

• The rate of reaction generally decreases.

• The rate of reaction becomes unpredictable.

• The rate of reaction generally increases.

Tags

NGSS.HS-PS1-5

What is the effect of catalysts on the rate of a chemical reaction?

• Catalysts have no effect on the rate of a chemical reaction.

• Catalysts decrease the rate of a chemical reaction.

• Catalysts increase the rate of a chemical reaction.

• Catalysts only affect the temperature of a chemical reaction.

Tags

NGSS.HS-PS1-5

How does surface area affect the rate of a chemical reaction?

• Increasing the surface area

• Increasing the temperature

• Surface area has no effect on the rate of a chemical reaction

• Decreasing the surface area

Tags

NGSS.HS-PS1-5