How do you balance a chemical equation?

Chemistry

ScanSolve AI Answer

5 steps

Answer

6

Balancing ensures the same number of each atom appears on both sides (conservation of mass).

Steps:

  1. Write the unbalanced equation
  2. Count atoms on each side
  3. Add coefficients (NOT subscripts) to balance
  4. Start with the most complex molecule
  5. Balance hydrogen and oxygen last

Example: Fe + O₂ → Fe₂O₃ • Fe: 1 left, 2 right → need 2 Fe on left • O: 2 left, 3 right → need LCM = 6 • 4Fe + 3O₂ → 2Fe₂O₃ ✓

Check: 4 Fe each side, 6 O each side. Balanced!

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Quick Answer

Balancing ensures the same number of each atom appears on both sides (conservation of mass).

How do you balance a chemical equation?
Chemistry

This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.

ScanSolve AI Answer
Balancing ensures the same number of each atom appears on both sides (conservation of mass). Steps: 1. Write the unbalanced equation 2. Count atoms on each side 3. Add coefficients (NOT subscripts) to balance 4. Start with the most complex molecule 5. Balance hydrogen and oxygen last Example: Fe + O₂ → Fe₂O₃ • Fe: 1 left, 2 right → need 2 Fe on left • O: 2 left, 3 right → need LCM = 6 • 4Fe + 3O₂ → 2Fe₂O₃ ✓ Check: 4 Fe each side, 6 O each side. Balanced!