Which of the following is an oxidation- reduction reaction? A) Cu (s) + 2AgNO₃(aq) - 2Ag (s) + Cu(NO₃)₂(aq) B) Ba(C₂H₃O₂)₂(aq) + Na₂SO₄(aq) - BaSO₄(s) + 2NaC₂H₃O₂(aq) C) HCl (aq) + NaOH (aq) -H₂O (l) + NaCl (aq) D) AgNO₃(aq) + HCl (aq) - AgCl (s) + HNO₃(aq) E) H₂CO₃(aq) + Ca(NO₃)₂(aq) - 2HNO₃(aq) + CaCO₃(s)

Question

Quizplus · Accepted Answer

This is an oxidation-reduction reaction because copper goes from being uncharged (in its elemental form) to having a positive charge (in the compound Cu(NO₃)₂(aq)), which means it lost electrons and was oxidized. Meanwhile, silver goes from having a positive charge (in the compound AgNO₃(aq)) to being uncharged (as a solid), meaning it gained electrons and was reduced.

Which of the Following Is an Oxidation- Reduction Reaction