Question

What is valency, Law of constant proportions, law of conservation of mass?
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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

ANSWER :-

• Valency- The combining power (or capacity) of an element is known as its valency.

• Law of conservation of mass - This law states that mass can neither be created nor destroyed in a chemical reaction.

• Law of Constant Proportion - In a chemical substance, the elements are always present in definite proportions by mass.

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