Question

what is mean by law of constant proportion??and law of conservation of mass.​

Answer 1

Answer:

Laws of conservation of mass - It states that mass can neither created nor destroyed. The total mass before and after a chemical reaction remains constant. Laws of constant proportion - It states that in a chemical substance the elements are always present in a fixed proportionby their mass. 4.7. 6 votes.

Explanation:

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Answer 2

Answer:

Law of constant proportion says that for a pure chemical compound two or more elements combine in a fixed ration by mass.

e.g. H2O - their mass ratio is fix i.e. 1:8

Law of conservation of mass says that mass can neither be created nor be destroyed for a chemical rection except nuclear reactions.

e.g. CaCO3 --> CaO + CO2

Here, the mass on reactant side and product side is equal.

Explanation:

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