Chemical Equation Balancer: Balance Chemical Reactions Online
Balance chemical equations and reactions with stoichiometric coefficients and atom conservation tallies.
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How to Use the Chemical Equation Balancer: Balance Chemistry Reactions
- 1Type chemical formula reactants and products separated by -> or =.
- 2Click Balance.
- 3Review balanced stoichiometric coefficients.
Formula & How It Works
Conservation of Mass Stoichiometric Linear System
Equates atomic counts for each element across reactants and products.
Worked Examples
Water Synthesis Reaction
Input: H2 + O2 -> H2O
Explanation: 4 Hydrogen atoms and 2 Oxygen atoms on both sides.
Frequently Asked Questions
Why must chemical equations be balanced?▼
Because atoms cannot be created or destroyed in chemical reactions (Law of Conservation of Mass).
Quick Reference & Conversion Table
| Unbalanced Equation | Balanced Reaction | Reaction Type |
|---|---|---|
| H2 + O2 -> H2O | 2H₂ + O₂ → 2H₂O | Synthesis |
| CH4 + O2 -> CO2 + H2O | CH₄ + 2O₂ → CO₂ + 2H₂O | Combustion |
| Fe + O2 -> Fe2O3 | 4Fe + 3O₂ → 2Fe₂O₃ | Oxidation |
⚠️ Common Pitfalls to Avoid
- •Changing chemical subscripts (e.g. changing H2O to H2O2) instead of balancing coefficients.
💡 Practical Real-World Uses
- •Stoichiometric calculations in chemistry classrooms and manufacturing synthesis.
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