Stoichiometry & the Mole: Counting Atoms by Weighing Them
Understand the mole, molar mass, and stoichiometry — using balanced equations and mole ratios to relate amounts of reactants and products — the chemistry background for ACT Science.
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Understand the mole, molar mass, and stoichiometry — using balanced equations and mole ratios to relate amounts of reactants and products — the chemistry background for ACT Science.
Understand energy in chemical reactions — endothermic vs. exothermic, conservation of energy, activation energy, and energy diagrams — the chemistry background for ACT Science.
Understand waves — wavelength, frequency, and amplitude — plus how sound and light behave, with the wave equation and the physics background that supports ACT Science.
Understand work, kinetic and potential energy, the conservation of energy, and power — with formulas and the physics background that supports ACT Science.
Master the optional ACT Writing essay — the three-perspective prompt, how to build and support an argument that engages the perspectives, and how the essay is scored.
Understand how the ACT is structured and scored — the sections, the 1-36 scale and composite, the optional essay and Science, and how to pace each section.
Build a smart, balanced college list — understanding reach, match, and safety schools, and weighing academic, financial, and social fit — with a practical process.
Know the ACT calculator rules — which calculators are allowed, when to use one, and when mental math is faster — to use your calculator as an asset, not a crutch.
Know the Digital SAT calculator rules — a calculator is allowed on the entire Math section, with a built-in Desmos graphing calculator — and how to use it strategically.