Question

law of conservation of mass and law of constant properties with example .​

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 proportion by their mass.

Explanation:

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Answer 2

Laws of constant proportion – It states that in a chemical substance the elements are always present in a fixed proportion by their mass.