Question

which reaction doesn't follow law of conservation of mass and why?​

Answer 1

Answer:

Reaction where Reactants and products are not equal

Explanation:

Because when the heat is supplied it is converted and released into vapours

Answer 2

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Nuclear reactions doesn't follow the Law of conservative of mass as some amount of mass is converted into energy during the reaction. So, we keep law of conservation of energy in Law of conservation of Mass to make it a fundamental conservative law.