Question

what is law of constant proportion ?

Answer 1

In chemistry, the law of definite proportion, sometimes called Proust's law or the law of definite composition, or law of constant composition states that a given chemical compound always contains its component elements in fixed ratio (by mass) that does not depend on its source and method of preparation.

Answer 2

Answer:

It means that a pure chemical compound contain the fix properties of elements by mass.

% carbon in co2 = mass of carbon

——–———— ×100

mass of co2