What happens to the reaction rate as the reactants get used up in a reaction? O

A. The rate of the reaction is not affected by the concentration of

reactants.

B. The rate of the reaction increases steadily as products are formed.

O

O

O

C. The rate of the reaction begins to decrease as reactants are used

up

O

D. The rate of the reaction stays constant until the reactants are

gone.

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat