Identify “X” and “Y” in the following reaction: Cu + “x” HNO₃ → Cu(NO₃)₂ + “y” NO₂ + 2H₂O
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[A] 4 and 2
By equating the number of atoms both sides, the balanced equation will be:
Cu + 4HNO₃ → Cu(NO₃)₂ + 2NO₂ + 2H₂O