Chemical Equation Calculator
Check if chemical equations are balanced and analyze reactants vs products.
Enter Chemical Equation
Use + to separate compounds, numbers for coefficients (e.g., 2H2 + O2)
Common Equations:
Equation Status
NOT BALANCED
Atom counts do not match on both sides
Your Equation:
CH4 + O2 → CO2 + H2O
Atom Count Comparison:
| Element | Reactants | Products | Status |
|---|---|---|---|
| C | 1 | 1 | OK |
| H | 4 | 2 | +2 |
| O | 2 | 3 | -1 |
Balancing Chemical Equations
A balanced chemical equation has the same number of atoms of each element on both sides, following the Law of Conservation of Mass. This means atoms are neither created nor destroyed in a chemical reaction - they are simply rearranged. Coefficients (numbers in front of formulas) are used to balance equations without changing the chemical formulas themselves.
How to Use This Calculator
Enter Formulas
Use standard chemical notation (e.g., H2O, CO2, NaCl)
Add Coefficients
Put numbers before formulas (e.g., 2H2O)
Separate Compounds
Use + between different compounds
Check Balance
The calculator shows if atoms match on both sides