Question

Mention the two postulates of Dalton's atomic theory that explain


Law of Conservation of Mass

Law of Constant proportions

Answer 1

LAW OF CONSERVATION OF MASS
The law of conservation of mass states that mass is neither created nor destroyed. In a closed system, mass of reactants is equal to the mass of products. The law of conservation of mass is related to the law of conservation of matter.

LAW OF CONSTANT PROPORTIONS
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 a fixed ratio (by mass) and does not depend on its source and method of preparation.

Answer 2

• Dalton's atomic theory postulate that atoms indivisible they can neither be destroyed nor created explain the law of conservation of mass.
• Atoms combine in the ratio of small whole numbers to form compounds explain the Law of Constant proportions