1
Measurements
Read lab instruments, find volume and density, and practice sig figs, scientific notation, conversions, and graphing.
Chemistry practice that builds a daily habit.
Work real chemistry problems step by step, get hints that point you in the right direction instead of handing over the answer, and keep your streak going one day at a time.
Why 119? Element 119 is the next one waiting to be discovered. Learning works the same way: there is always something new just past what you already know.
How it works
Every unit is built around the way chemistry is actually taught: set up the problem, show the work, and get feedback on what you entered.
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Pick a unit
Choose a single problem type to focus on, or mix several together for test review. Your week tracker fills in every day you finish a problem.
The unit picker and weekly tracker. -
Show your work
A guided work area walks you through the setup, one step at a time. When you're ready, switch to the open work area and set it up yourself.
A guided empirical formula problem. -
Get hints, not answers
Feedback responds to what you actually entered. If your math is right but your sig figs aren't, it says so. Hints start small and build up, so you still do the thinking.
A first hint when only the sig figs are off. -
Track your progress
See how many problems you solved on the first try, after a wrong check, or with a hint. Reopen any past problem, try it again, or flag it to ask your teacher about it in person.
Your stats across every unit.
Units so far
Each unit has calculation practice, concept checks, and vocabulary review with flashcards, matching, and a definition quiz.
2
The Mole
Mole conversions, molar mass, percent composition, empirical and molecular formulas, and hydrates.
3
Chemical Reactions
Classify reactions, balance equations, predict products, and write ionic and net ionic equations.
4
Stoichiometry
Mole ratios, mass and gas conversions, yields, and limiting and excess reactants.
More on the way
New units are added as the year goes on.
Built by a chemistry teacher
ChemHabit grew out of a real classroom. Every problem type, hint, and piece of feedback is written to match how chemistry is taught, and how students actually get stuck.
Right now ChemHabit is open to students by invitation. If you're a teacher, a student, or just curious, reach out to learn more.
Follow along
A new chemistry problem every day, with a quick lesson and the answer.