An example of a balanced chemical equation is:
NaOH + HCl = NaCl + H2O
what is the chemical equation of nitrogen + oxygen= nitric oxide
We can compare balancing chemical equation to a mother and her children. She should be fair in giving the things that her children want. She should be equal. :)
When balancing a chemical equation the reactants need to be balanced with the non-reactants. If you don't the formula will be produce negative results and you'll get the wrong answer.
It is important never to change a subscript {note correct spelling} in a chemical formula when balancing a chemical equation, because changing a subscript produces a formula that specifies a chemical substance different from the one in the original equation.
How does a subscript affect the element just before it?
Checking of the coefficients.
Coefficients of molecules are adjusted.
When you are balancing known reactants and known products which is always the case when you are asked to "balance" a chemical equation you must not change the subscripts as that changes the reactants or the products to a different chemical compound.
Balancing a chemical equation establishes what proportions of the reactants are required for complete reaction as well as the proportions of the products of the reaction. Some factors in balancing the equation will also dictate what the products ARE. For example - when balancing the equation for a combustion reaction, the presence of nitrogen in the fuel molecule will yield certain products while it's absence will exclude certain products. Likewise, when performing electrochemical reaction balances, balancing the electrochemistry will dictate the products of the reaction.
The laws of conservation of mass and of numbers of each type of atom.
being able to write a balanced equation for a reaction is very important. By balancing an equation we can tell how much material we will need to start with, what the likely products to form, and how much of these products will form
Balancing only allows you to change the coefficients, NOT the subscripts.