Chemistry STEMscopedia 7 - Section 3 The Reaction Process

What must happen for a chemical reaction to take place?

Hint: See reading packet section "The Reaction Process" on pages 5-6.

• The reactants must be heated.

• The reactants must collide.

• The reactants must be dissolved in water.

What does the collision between molecules in a chemical reaction provide?

Hint: See reading packet section "The Reaction Process" on pages 5-6.

• Activation energy

• Kinetic energy

• Potential energy

What is necessary for a collision to result in a chemical reaction?

Hint: See reading packet section "The Reaction Process" on pages 5-6.

• Sufficient kinetic energy

• Presence of a catalyst

• Low temperature

What is the study of the speed of a reaction called?

Hint: See reading packet section "The Reaction Process" on pages 5-6.

• Chemical kinetics

• Thermodynamics

• Molecular biology

What can affect the rate of a chemical reaction?

Hint: See reading packet section "The Reaction Process" on pages 5-6.

• Amount of energy and frequency of collisions

• State of matter

• Color of the reactants

What happens when reactant particles don't collide with the minimum activation energy?

Hint: See reading packet section "The Reaction Process" on pages 5-6.

• They bounce off each other without reacting.

• They form new compounds.

• They dissolve.

How does the rate of a reaction change over time?

Hint: See reading packet section "The Reaction Process" on pages 5-6.

• It increases then decreases.

• It increases continuously.

• It remains constant.

What does not determine the rate of a reaction?

Hint: See reading packet section "The Reaction Process" on pages 5-6.

• Amount produced

• Temperature

• Activation energy

What increases as the concentration of reactants increases?

Hint: See reading packet section "The Reaction Process" on pages 5-6.

• Time for the reaction to complete

• Activation energy

• Likelihood of a successful collision

What effect does increasing the temperature have on the reaction rate?

Hint: See reading packet section "The Reaction Process" on pages 5-6.

• Increases it

• Has no effect

• Varies depending on the reactant