Q6 of 64 Page 112

Write true or false for the following statements:

One atomic mass unit is a mass unit equal to exactly one-twelfth (1/12th) the mass of one atom of carbon-12.

True

One atomic mass unit is a mass unit which is equal to the mass of exactly one-twelfth (1/12th) of the mass of one atom of carbon-12 isotope.


Hence, the above statement is true.


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In water, the ratio of the mass of hydrogen to the mass of oxygen is always 1:8, whatever is the source of water.

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Write true or false for the following statements:

In a chemical substance, the elements are always present in varying proportions by mass.

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The relative atomic masses of all elements have been found with respect to an atom of oxygen-16.

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The relative number and kinds of atoms are varying in a given compound.