Question

What is a chemical formula? What rules should be followed while writing a chemical formula?​

Answer 1

Answer:

The rule for writing chemical formula are: -Firstly, write the symbols with positive charge valency first. - Secondly, write the valency of each atom on the top of its symbol. - Thirdly, divide the valency number by their highest common factor ignore the positive or negative radicle.

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Explanation:

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