What is a formulas?

Answer 1

Well, generally a formula is a group of symbols that make a mathematical statement.

In chemistry, chemical formula or molecular formula is a way of expressing information about the atoms that constitute a particular chemical compound.

For example formula of Sodium hydroxide is (NaOH), formula of methane is (CH4) etc.

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A chemical formula is a concise way of expressing information about the atoms that constitute a particular chemical compound. It identifies each type of element by its chemical symbol and identifies the number of atoms of such element to be found in each discrete molecule of that compound.

Glucose with six atoms, twelve hydrogen atoms and six oxygen atoms has the chemical formula: C6H12O6

Hope this helps.

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The chemical formula for water is H20