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