3. When the kinetic energy of molecules ., the molecules are moving
a. Increases/the same speed
b. Increases/slower
C. Increases/faster
d. Decreases/faster
e Decreases/the same speed
1

The activation energy for a(n) is quite large and usually takes extra energy from the environment, it is normally not a natural spontaneous process. combustion reaction endothermic reaction exothermic reaction catalyzed reaction