Chemistry

Tenth grade Chemistry is the standard full-year course in the traditional US sequence and, for most students, the most mathematically demanding science they have met so far. It moves from atomic structure, electron configuration and periodic trends into bonding, nomenclature and equations, then into the quantitative core of the subject.

That core is stoichiometry — the mole, molar mass, limiting reactants and percent yield — followed by gas laws, solutions and molarity, thermochemistry, acids and bases, and reaction rates. Grades track calculation accuracy more than conceptual understanding, so most of the useful tutoring time goes on setting problems out cleanly and checking units at every step.