8. in general, if the temperature of a chemical reaction is increased, the reaction rate
a. increases.
c. remains the same.
b. decreases.
d. cannot be predicted.

a) increases

Explanation:

The increase in temperature causes the particles to move much faster. This in turn effects the collision rate of the particle which causes the chemical reaction. Thus the rate of chemical reaction increases.

So, we conclude that the rate of a chemical reaction is directly related to temperature. With increase in temperature there is an increase in the reaction rate and vice versa.  

i think it's 35 meters