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A mixture of hydrogen and oxygen contains 20% by mass of hydrogen find out total number of molecules present per gram of the mixtu

By Arianna

A mixture of hydrogen and oxygen contains 20% by mass of hydrogen find out total number of molecules present per gram of the mixture.​

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Arianna

Q5. Find the measure of each interior angle of a

regular (i) pentagon (ii) decagon.​

The auxiliary verb gives support to the ______
verb in a sentence​

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