Chem Equation Balance 2026

Chem Equation Balance Practice is an offline app designed for middle and high school chemistry study. It helps students practice balancing chemical equations without internet access or account login.

The app is useful for after-class review, exam preparation, and parent-guided learning. Users can enter equations to check balancing results, practice with the built-in question bank, save mistakes, and review by reaction type.

Key features:

1. Equation balance checking: enter reactants and products, check atom conservation, and view the balanced result.
2. Step-by-step hints: get element-based coefficient hints to understand the balancing process instead of only seeing the answer.
3. Offline question bank: practice combustion, single replacement, double replacement, redox reactions, and more.
4. Mistake notebook: automatically save incorrect questions and filter them by date, type, and mastery status.
5. Study statistics: track accuracy, practice streaks, weak topics, and review progress.

All data is stored only on the device. No account is required, and no personal information is collected.