Question

In a nuclear reaction, the mass-energy of the reactants is generally:

Answer 1

The answer is D, b coz E=MC2. The answer B is wrong because as Einstein states a loss of mass would be justified by a gain in energy because mass is directly proportional to energy. Any mass lost wouldn't be loss per say, the law of conservation only applies to matter, not mass. Mass can be turned into kinetic enery.
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Answer 2

Thanks so much! :)

Answer 3

welcome:)