Chemistry Quiz

Element Quiz — You're shown an atomic number, name, or symbol and asked to identify one of the others. Choose from elements 1–20 (easy), 1–60 (hard), or the full 1–118 table (hell).

Compound Naming — You're shown a chemical formula or compound name and must provide the other. Choose ionic or covalent compounds, pick an easy/hard/hell pool, and an answer mode.

Infinite — Keep going as long as you like. Great for open-ended practice.

Timed — Answer as many as you can in 1, 3, or 5 minutes.

Survival — Complete all questions before your hearts run out. Each wrong answer costs a heart; you also have a per-question timer. Finishing a full survival run earns a trophy.

Type your answer and press Enter or hit Check. Spelling must be close but capitalisation doesn't matter. Some compounds accept common alternate names (e.g. "ammonia" for NH₃).

In Compound Naming you can also switch to Multiple Choice — but see the note below.

Trophies are earned by completing a full Survival run. There are 36 possible trophies — one for each combination of quiz type, pool, and difficulty. View them all on the Achievements tab.

Personal records (best streak in Infinite, most correct in Timed) are also tracked per category on the Achievements tab. These live on this device only — switching devices starts a fresh record.

Sign up to compete against other players. Two boards: longest Infinite streak and most Timed-mode answers, top 50 each. Pick Public at signup, or enter a class code from Alam to earn the ALAM ✓ badge and unlock the Alam's-students-only board.

Once you're logged in, every Timed run and every Infinite session auto-publishes your score on game-exit — no extra button needed. Only your best score per board is shown.