In a uranium fission reaction, uranium splits into two smaller atoms and energy. where did the energy come from? a. chemical bonds are broken, and chemical energy is released. b. when the uranium splits, mass and energy are created making the two new atoms. c. some of uranium's mass is converted into energy, so the smaller atoms have less mass. d. the energy had to be the kinetic energy of the atom of uranium before it split.

Some of uranium's mass is converted into energy, so the smaller atoms have less mass.

The answer is C-

Some of uranium's mass is converted into energy, so the smaller atoms have less mass.

Explanation:

In Uranium fission reaction, a neutron collides uranium atom splitting into smaller atoms and energy, some of uranium's mass is converted into energy, so the smaller atoms have less mass.

The process keep repeating itself again and again.

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