Which of the following will lower the rate of reaction? (there are 2 answers to select) A. decreasing the temperature from 30 degrees to 20 degrees Celsius.

B. Adding an enzyme to the reaction.

C. breaking a chunk of reactant up into smaller pieces.

D. decreasing the concentration of a reactant.

B. Adding an enzyme to the reaction

D. decreasing the concentration of a reactant.

h let me think

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.