How to use and convert scientific units.
How to use and interpret scientific notation.
How to find and use molar mass.
How to draw the structure of a molecule using VSEPR rules.
How to use stoichiometry to work with chemical equations.
How acids and bases are used in buffered solutions.
How to use half reactions to understand oxidation-reduction.
How to use heat of formation in thermochemical problems.
The meaning and uses of atomic numbers.