To determine if the equations are balanced or unbalanced, we need to count the number of atoms of each element on both sides of the equation. An equation is balanced if the number of atoms for each element is the same on both sides.
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N₂ + 3H₂ → 2NH₃
- Left side: N = 2, H = 6 (3 * 2)
- Right side: N = 2, H = 6
- BALANCED
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2C₂H₆ + 7O₂ → 4CO₂ + 5H₂O
- Left side: C = 4 (2 * 2), H = 12 (2 * 6), O = 14 (7 * 2)
- Right side: C = 4, H = 10 (5 * 2), O = 13 (4 * 2 + 5)
- UNBALANCED
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4ZnS + 6O₂ → 4ZnO + 2SO₂
- Left side: Zn = 4, S = 4, O = 12 (6 * 2)
- Right side: Zn = 4, S = 2, O = 10 (4 + 2 * 2)
- UNBALANCED
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2Fe₂O₃ + 3C → 4Fe + 3CO₂
- Left side: Fe = 4 (2 * 2), O = 6 (2 * 3), C = 3
- Right side: Fe = 4, O = 6 (3 * 2), C = 3
- BALANCED
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C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
- Left side: C = 3, H = 8, O = 10 (5 * 2)
- Right side: C = 3, H = 8, O = 10 (3 * 2 + 4)
- BALANCED
Summary:
- Balanced
- Unbalanced
- Unbalanced
- Balanced
- Balanced
1 answer