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Butane burning

Balance C₄H₁₀ + O₂ → CO₂ + H₂O

2 C₄H₁₀(g) + 13 O₂(g) → 8 CO₂(g) + 10 H₂O(l)

  • Combustion reaction
  • 2 : 13 : 8 : 10 coefficients

Balance an equation

Arrow. Type -> or =. Subscripts. Plain digits: H2SO4, Ca(OH)2, CuSO4.5H2O. Charges. Fe3+, OH-, SO4 2-, and e- for an electron. States. (s), (l), (g) and (aq) are kept. Coefficients you type are checked.

2C₄H₁₀(g)+13O₂(g)→8CO₂(g)+10H₂O(l)

Balanced

Atoms on each side

AtomAs writtenleft : rightBalancedleft : right
C4:18:8
H10:220:20
O2:326:26

Check atoms

How to balance it
Working

How to balance it, step by step

  1. Count the atoms of each element on both sides, as written.
  2. Start with the biggest formula, C₄H₁₀: put 1 in front of it.
  3. C: 4 on the left. Put 4 in front of CO₂.
  4. H: 10 on the left. Put 5 in front of H₂O (5 × 2 = 10).
  5. O: 13 on the right. Put 13/2 in front of O₂ (13/2 × 2 = 13).
  6. Clear the fraction: multiply every coefficient by 2.
  7. Check: C 8 = 8, H 20 = 20, O 26 = 26. Balanced.
The reaction

What happens

It is a combustion reaction: a substance burns in oxygen and gives out heat and light. Butane, the main gas in LPG cylinders, burns in oxygen to give carbon dioxide and water.

Questions

Butane burning: quick answers

What is the balanced equation for butane burning?

2 C₄H₁₀(g) + 13 O₂(g) → 8 CO₂(g) + 10 H₂O(l). The coefficients are 2, 13, 8 and 10. Each side then has 8 C, 20 H and 26 O.

What type of reaction is butane burning?

It is a combustion reaction: a substance burns in oxygen and gives out heat and light. Butane, the main gas in LPG cylinders, burns in oxygen to give carbon dioxide and water.

How do you balance C₄H₁₀ + O₂ → CO₂ + H₂O?

Start with the biggest formula, C₄H₁₀: put 1 in front of it. C: 4 on the left. Put 4 in front of CO₂. H: 10 on the left. Put 5 in front of H₂O (5 × 2 = 10). O: 13 on the right. Put 13/2 in front of O₂ (13/2 × 2 = 13). Clear the fraction: multiply every coefficient by 2. Never change a subscript, because that would change the substance.

Balance your own equation