In a uranium fission reaction the uranium splits into 2 smaller atoms an energy. where did the energy come from?

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

Explanation:

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when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

the answer is b

explanation: