Question

Explain the law of constant proportion.
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Answer 1

Answer:

The law states that in a chemical substances the elements are always present in a definite proportion by mass. It is also termed as law of definite proportion.

For instance, the ratio of hydrogen and oxygen in water obtained from any source is 1:8 i.e. 1g of hydrogen and 8g of oxygen together make up 9g of water

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Answer 2

■ ANSWER ■

This law states that "in a chemical substance, the elements are always present in definite proportions by mass".

This law states that "in a chemical substance, the elements are always present in definite proportions by mass".For example: 

This law states that "in a chemical substance, the elements are always present in definite proportions by mass".For example: In water H2O, hydrogen and oxygen are always present in the ratio of 1:8 by mass, whatever the method or source from which water is obtained.

This law states that "in a chemical substance, the elements are always present in definite proportions by mass".For example: In water H2O, hydrogen and oxygen are always present in the ratio of 1:8 by mass, whatever the method or source from which water is obtained.Massof 2 hydrogen atom=2

This law states that "in a chemical substance, the elements are always present in definite proportions by mass".For example: In water H2O, hydrogen and oxygen are always present in the ratio of 1:8 by mass, whatever the method or source from which water is obtained.Massof 2 hydrogen atom=2Mass of one oxygen atom=16

This law states that "in a chemical substance, the elements are always present in definite proportions by mass".For example: In water H2O, hydrogen and oxygen are always present in the ratio of 1:8 by mass, whatever the method or source from which water is obtained.Massof 2 hydrogen atom=2Mass of one oxygen atom=16Hence, ratio of hydrogen and oxygen by mass=2:16=1:8

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