What is laws of chemical combination

Question

Accepted Answer

Laws that describe how elements combine to form compounds.

The law of definite proportions states that a compound always contains the same elements in the same proportion by mass.
The law of multiple proportions states that when two elements form more than one compound, the ratios of the masses of one element that combine with a fixed mass of the other element are ratios of small whole numbers.
The law of conservation of mass states that in a chemical reaction, the total mass of the reactants equals the total mass of the products.
These laws help predict the outcomes of chemical reactions and are fundamental to the study of chemistry.
For example, the combination of hydrogen and oxygen always results in water, with a fixed ratio of 2:1 by mass.

Accepted Answer

Law of equal proportion and law of conservation of mass

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