In oxidation number method of chemical equation balance, an important parameter of an element to calculate is:

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction is equal on the reactant and product side.

What is meant by chemical formula? Calculate the number of aluminium ions present in 0.051 g of aluminium oxide.
(Hint: The mass of an ion is the same as that of an atom of the same element. Atomic mass of Al = 27 u)
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In this method of balancing chemical equations, trials are made to balance the equation by using the smallest whole number coefficient, the method is known as ___.

How to balance the charge in oxidation number method please explain by giving an example?