Answer:
The answer is: Law of multiple proportions
Step-by-step explanation:
The law of multiple proportions is a law of chemical combination given by Dalton in 1803.
According to this law, if more than one chemical compound is formed by combining two elements, then the mass of an element that combines with the fixed mass of other element is represented in the form of small whole number ratio.
Therefore, is an illustration of the law of the law of multiple proportions.