Balance the Equation!

Tap −/+ to set coefficients until every atom balances.
Live atom-tally shows your progress. Real chemistry engine!

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Starter

Simple 2–3 species reactions

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Balancer

Combustion, thermite, displacement

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NEET / JEE Redox

KMnO₄+HCl, Cu+HNO₃ — the big ones!

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6 equations per session · hints cost 5 pts · lowest-terms bonus +5