Chemistry
From atoms and the periodic table to bonding, reactions, solutions and the biochemistry your body runs on.
Matter and Measurement
Handle scientific notation, the metric system, temperature scales and atomic structure.
- 01Scientific notation and the metric systemFree lesson
- 02Temperature scales
- 03Atomic structure and the periodic table
Bonding and Reactions
LockedSee how atoms bond, how reactions are written and balanced, and what changes their rate.
- 01Chemical bonding
- 02Reactions and equations
- 03Reaction rates and equilibrium
Quantitative Chemistry
LockedMeasure concentration, work through stoichiometry, and track oxidation and reduction.
- 01Solutions and concentration
- 02Stoichiometry
- 03Oxidation and reduction
Aqueous and Nuclear Chemistry
LockedCover acids and bases on the pH scale, and the basics of nuclear decay.
- 01Acids and bases
- 02Nuclear chemistry
Biochemistry
LockedMeet the four biological macromolecules your body is built from.
- 01Biological macromolecules
Ready to practise it?
Reading is good. Practising is better. Drill this subject with free HESI A2 Chemistry practice questions, then sit the free full-length HESI A2 practice test to see your percentage under exam timing.