Question

2. The constituent of a compound are present in --------------- proportion by mass.​

Answer 1

Answer:

In a pure chemical compound, elements are always present in a definiteproportion by mass. This is known as the Law ofDefinite Proportions. An atom is the smallest particle of the element that can exist independently and retain all its chemical properties.It shows all the properties of the substance.

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Answer 2

Answer:

constant

Explanation:

It is said that the constituents of a compound are present in constant proportion by mass. It is the law of constant proportions given by Joseph Proust

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