Question

can anyone tell why mass can neither be created nor be destroyed​

Answer 1

Answer:

The Conservation of Mass-Energy

There is a scientific law called the Law of Conservation of Mass, discovered by Antoine Lavoisier in 1785. In its most compact form, it states: matter is neither created nor destroyed. ... Generally, textbooks would add, as I am doing, that mass and energy can interconvert.

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Answer 2

Explanation:

yes just by performing any chemical reaction and by measuring the weight of chemicals before the reaction and after the reaction