Question

what do you mean by chemical formula​

Answer 1

Answer:

A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule

Answer 2

Explanation:

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:$\Longrightarrow$ In chemical formulae for compounds , we write the constituent elements and their valencies as shown below.

:$\Longrightarrow$ Then we must crossover the valencies of the combining atoms.

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:$\Longrightarrow$ Formula of hydrogen chloride:-

The covalency of hydrogen and chlorine is 1 and 1 respectively, so by cross multiply with each other, we get HCl.

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