Question

Compare and contrast the Law of Conservation of Mass and the Law of Definite Proportions. Be sure to compare, contrast, and tell the scientists responsible for each.

Answer 1

The law of conservation of mass states that mass is conserved in a chemical reaction, while the law of definite proportions states that a compound always contains the same elements in the same proportions by mass.

Step-by-step explanation:

Law of Conservation of Mass:

The law of conservation of mass states that the total mass of all the substances taking part in a chemical reaction is conserved and the number of atoms of each element in the reaction does not change when a new product is formed.

Law of Definite Proportions:

The law of definite proportions states that a given chemical compound always contains the same elements in the exact same proportions by mass. For example, any sample of pure water contains 11.19% hydrogen and 88.81% oxygen by mass.The law of conservation of mass was proposed by Antoine Lavoisier, a French chemist. The law of definite proportions was proposed by Joseph Proust, a French chemist.