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The number ONE is never written in the formula for a chemical coumpound because it will be assumed. ONE is the number!
We need to know the reactants and products with their chemical formulas.
Chemical equations written with symbols and formulas provide precision and clarity in representing the reactants and products involved in a reaction. They also allow for easy stoichiometric calculations and a more concise way of expressing chemical reactions.
Chemical Formulas
The molecular formula of ethanol is written as either CH3CH2OH or C2H5OH, and its empirical formula is C2H6O. It is often written as EtOH.
All chemical formulas are called chemical notations. They represent the elements and the number of atoms of each element present in a compound.
The metals by themselves do not have chemical formulas, they have chemical symbols which are shown on the periodic table of the elements. They only have chemical formulas if they are chemically bonded to another element, usually a nonmetal.
Chemical equation
The reactants are written on the left side of the equation, while the products are written on the right side. The equation is balanced by adjusting the coefficients in front of the chemical formulas so that the number of atoms for each element is the same on both sides.
The subscript Number of atoms of that element in the molecule.
Chemical Formulas
In a correctly written chemical equation, reactants are the substances to the left of the arrow, and products are the substances to the right of the arrow. The reactants are what you have before the reaction starts, and the products are what you have when the reaction is over.