Laws of Chemical Combination

1. Law of Multiple Proportions

1. Proposed by John Dalton in 1803.
2. States that when two elements combine to form more than one compound, the masses of one element that combine with a fixed mass of the other are in the ratio of small whole numbers.
3. For example, carbon and oxygen form CO (carbon monoxide) and CO₂ (carbon dioxide).

1. Introduction

1. The Laws of Chemical Combination describe the fundamental principles that govern chemical reactions.
2. These laws were established based on experimental observations.
3. The two primary laws are the Law of Conservation of Mass and the Law of Definite Proportions.

2.