Question

14) State the names of following laws:
a) Mass can neither be created nor destroyed in a chemical reaction.
b) In a pure chemical compound, elements are present in definite proportion by
mass.​

Answer 1

Answer:

Law of Constant Proportion states that a chemical compound always contains exactly the same proportion of elements by mass. This law is also known as Law of definite proportions. Joseph Louis Proust gave this law hence, this law is also known as Prousts Law.