Very Short Question and Answers - Law of Constant Proportions

In a chemical substance, the elements are always present in definite proportions by mass.

The mass ratio of hydrogen to oxygen in water is always 1:8.

Joseph Proust.

Lavoisier established the law of conservation of mass, which states that mass is neither created nor destroyed in chemical reactions.

Atoms are tiny, indivisible particles that make up all matter.

Atoms of different elements have different masses and chemical properties.

To find the amount of hydrogen, use the ratio: 2 g of nitrogen requires (2 g * (3/14)) ≈ 0.43 g of hydrogen.

Atoms combine in the ratio of small whole numbers.

Atoms cannot be created or destroyed in a chemical reaction.

It implies that a chemical compound always has the same proportion of elements by mass, regardless of its source.