In the equation 2 H₂ + O₂ → 2 H₂O,
A) H₂, O₂, and H₂O are all compounds.
B) H₂, O₂, and H₂O are all elements.
C) only H₂O is a compound.
D) only H₂ and O₂ are compounds.
Correct Answer:
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