Question

in all Physical and chemical changes ,the total mass of the reactants in equal to total mass of product .This is the law of
a) Constant Proportions
b) Conservation of mass
c) multiple Proportions
d) None of these ​

Answer 1

ANSWER:

In all Physical and chemical changes, the total mass of the reactants in equal to total mass of product. This is the law of

b) Conservation of mass.

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