The chemical formula of a covalent molecular substance ... the simplest ratio of atoms/ions in the substance. Sometimes the name of the compound gives information about the formula of that compound.

They will also learn how to correctly name chemical compounds and write chemical formulas. A main goal of many alchemists of the past was to turn lead into gold. This collection of links explores the ...

It's important to use the names and chemical symbols for the first 20 elements in the periodic table, as well as the elements in groups 1 and 7.