Balance: C₂H₆ + O₂ → 2 CO₂ + 3 H₂O

7/2 C: 2 = 2. H: 6 = 6. O: 2(2) + 3(1) = 7 → need 7/2 O₂ (or multiply by 2: 2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O).

Types of Chemical Reactions

AP Chemistry· difficulty 3/5

Balance: C₂H₆ + __ O₂ \to 2 CO₂ + 3 H₂O

Explanation

C: 2 = 2. H: 6 = 6. O: 2(2) + 3(1) = 7 \to need 7/2 O₂ (or multiply by 2: 2 C₂H₆ + 7 O₂ \to 4 CO₂ + 6 H₂O).

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