Question

how to write the formulae writing in chemistry can anyone tell me please​

Answer 1

Answer:

A molecular formula is a representation of a molecule that uses chemical symbols to indicate the types of atoms followed by subscripts to show the number of atoms of each type in the molecule. (A subscript is used only when more than one atom of a given type is present.)

Answer 2

Answer:

chemical equation is a written statement that uses chemical symbols and chemical formulas instead of words to describe the changes that occur in chemical reaction.

The following example, shows the contrast between a word description of a chemical reaction and a chemical equation for the same reaction.

Explanation:

Hope it's help