Question

What is chemical formula which rules have you to follow while writing a chemical formula

Answer 1

A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute or molecule.by using the chemical element symbols, numbers and sometimes also other symbols,such as brackets, dashes,comas, plus , minus signs.

These rules have you to follow while writing a chemical formula:
(1) The symbol of the constituent elements.
(2) The symbols of metal written first.
(3) The combining capacity's of each atom constituting the compound.

Answer 2

The rule for writing chemical formula is as follow: 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.