Question

2:1 is a law of conservation of mass​

Answer 1

Answer:

the law of conservation of mass in other words the mass of any element of the begining of reaction will equal the mass of that element at the end of the reaction. if we account for all reactant and product in a chemical reaction, the total mass will be the same at any point in the time in any closed system.

Explanation:

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Answer 2

Answer:

The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.

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