aye S (s) + 4Pb (s) 4PbS₂ (s) 2N₂ (g) + 50₂(g) → 2N₂O5 (8) 3Cr(NO₂)₂ (aq) + 2Al(s) → 3Cr(s) + 2Al(NO₂)₂(aq) redox reaction? yes reducing agent: oxidizing 0 agent: redox reaction? O yes reducing agent: oxidizing agent: 0 0 redox reaction? O yes reducing agent: no oxidizing 0 agent: no O no

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