The chemical formula of a covalent molecular substance gives the number of atoms per molecule. The formula of a covalent network or ionic compound gives the simplest ratio of atoms/ions in the ...

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 ...

However, we now know that there are actually 118 chemical elements ... atoms (green), because the formula is NaCl. A mixture is formed when two or more elements or compounds are present without ...