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Chemical Equation Balancer

Science & Engineering

Balance any equation · conservation check · steps

Quick Answer

Chemical Equation Balancer: Balance any equation · conservation check · steps. Chemical Equation Balancer uses standard science & engineering formulas to compute accurate results instantly.

Supports nested ( ) [ ], hydrates with · , "=" or "→", optional existing coefficients

Balanced equation
Fe₂O₃+2Al→Al₂O₃+2Fe
Compounds4
Elements3
Coefficient ratio1:2:1:2
StatusRebalanced

Atom conservation check

ElementLeft atomsRight atomsCheck
Fe22✓
O33✓
Al22✓

Calculation steps

  1. 1Parse: 4 compounds, 3 elements (Fe, O, Al)
  2. 2Atom conservation equations (coefficients a, b, c…):
  3. 3Fe: 2a = d
  4. 4O: 3a = 3c
  5. 5Al: b = 2c
  6. 6Solve with the last coefficient = 1: 1/2 : 1 : 1/2 : 1
  7. 7Scale to smallest integers: 1 : 2 : 1 : 2
  8. 8Verify: Fe 2=2, O 3=3, Al 2=2

Common balanced equations

EquationRatioNote
2H₂ + O₂ = 2H₂O2:1:2Hydrogen combustion
CH₄ + 2O₂ = CO₂ + 2H₂O1:2:1:2Natural gas combustion
C₃H₈ + 5O₂ = 3CO₂ + 4H₂O1:5:3:4LPG combustion
Fe₂O₃ + 2Al = Al₂O₃ + 2Fe1:2:1:2Thermite welding
2KClO₃ = 2KCl + 3O₂2:2:3Lab oxygen generation
6CO₂ + 6H₂O = C₆H₁₂O₆ + 6O₂6:6:1:6Photosynthesis
Balancing follows the law of conservation of mass: each element has the same atom count on both sides. Element symbols are case-sensitive (Co = cobalt, CO = carbon monoxide). Ionic equations with charges and reaction conditions are not supported.

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How to Use

  1. Enter known quantities: fill values and confirm units in the Chemical Equation Balancer.
  2. Instant solution: unknowns solve live with the formula shown transparently.
  3. Use constant/material tables: standard physical constants and material data are listed on this page.
  4. Compare conditions: change inputs to compare scenarios.

Key Points

  • Chemical Equation Balancer is a free online science & engineering tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: Balance any equation · conservation check · steps.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Chemical Equation Balancer formula

Chemical Equation Balancer uses standard science & engineering formulas to compute accurate results instantly.

FAQ

How do I use the Chemical Equation Balancer?
Open the page and fill in the input fields — results update automatically. Balance any equation · conservation check · steps.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

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Source & Updates

Based on CODATA recommended constants and standard physics formulas. Last updated: 2025-07

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Chemical Equation Balancer[EB/OL]. https://www.yijiansuan.com/en/c/science/chemical-equation

Results provided by this tool are for reference only and do not constitute professional advice.