Elements bond in fixed ratios and so can be represented by a chemical formula. For example, sodium chloride has the same number of sodium ions and chloride ions, so its formula is NaCl ...

The formula of an ionic compound can be deduced from the formulae of its ions. Remember that for the metal elements in groups 1, 2, and 3 the charge on the ion can be deduced by how many outer ...

The potassium and chloride ions are spectator ions. (see your textbook for a discussion of Lewis Acids and Bases.) From a series of qualitative tests and a microanalysis of this complex formed, you ...