Basic Concepts of Chemistry

This law of reciprocal proportions states that When two elements combine with fixed mass of the third element, the ratio will either be same or simple multiple ratios of weights of two elements.

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The law of multiple proportions states that when two elements combine to form two or more than two compounds, the mass of one of the elements which combine with fixed mass of other bears […]

The law of definite proportion states that a compound always contains same elements in fixed ratio by mass.

Definition of Conservation of Mass:

The mass of the products in a chemical reaction must equal the mass of the reactants.

Explanation:

Consider the reaction where hydrogen and oxygen react to give one water molecule.

The […]