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Which chemical equation represents a balanced reaction?

a. 4 NH₃(g) + 5 O₂(g) → 4 NO(g) + 5 H₂O(g)
b. 4 NO₂(g) + 2 H₂O(l) + O₂(g) → 4 HNO₃(l)
c. C₁₀H₂₂(l) + 15 O₂(g) → 10 CO₂(g) + 11 H₂O(g)

1 Answer

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Final answer:

Option a, 4 NH₃(g) + 5 O₂(g) → 4 NO(g) + 5 H₂O(g), represents a balanced reaction.

Step-by-step explanation:

The chemical equation that represents a balanced reaction is option a.

4 NH₃(g) + 5 O₂(g) → 4 NO(g) + 5 H₂O(g)

To determine if a chemical equation is balanced, you need to ensure that the number of atoms of each element is the same on both sides of the equation. In this case, there are 4 nitrogen (N) atoms, 10 hydrogen (H) atoms, and 10 oxygen (O) atoms on both sides, indicating a balanced reaction.

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