The activation energy of a chemical reaction is the: a. energy input needed to get the atoms to start sharing their electrons. b. energy released by atoms after they share their electrons. c. energy needed to excite the electrons. d. energy needed to power a cell.

c. energy needed to excite the electrons.

Explanation:

energy needed to excite the electrons.

Explanation: Activation energy can be defined as the energy required to initiate a reaction. For example, the flame from the fuse of a firecracker provides a small initial amount of energy, after which the explosive reaction proceeds by itself, releasing a considerably larger quantity of energy.

5.4%

explanation:

the acceptance rate for harvard is 5.4%. this means only 5 percent of people who apply actually get accepted!