Question

State the Law of conservation of mass and the Law of constant proportion with examples.

Answer 1

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed.the mass of the system must remain constant over timeThe law implies that mass can neither be created nor destroyed, although it may be rearranged in space, or the entities associated with it may be changed in form,

The law of constant proportion was given by Joseph Louis proust. It says that in a chemical substance (compound) elements are always present in definite proportion by mass.For example: In a compound such as water the ratio of mass of hydrogen to the mass of oxygen is always 1:8. Thus, if 9 grams of water is decomposed 1 gram of hydrogen and 8 grams of oxygen are always obtained.

Answer 2

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The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass.

The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass. For example, in a nitrogen dioxide (NO2) molecule, the ratio of the number of nitrogen and oxygen atoms is 1:2 but the mass ratio is 14:32 (or 7:16)

Answer 3

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The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass.

The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass. For example, in a nitrogen dioxide (NO2) molecule, the ratio of the number of nitrogen and oxygen atoms is 1:2 but the mass ratio is 14:32 (or 7:16)

Answer 4

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The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass.

The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass. For example, in a nitrogen dioxide (NO2) molecule, the ratio of the number of nitrogen and oxygen atoms is 1:2 but the mass ratio is 14:32 (or 7:16)