Which of the following equations is/are redox reactions? I: …
Which of the following equations is/are redox reactions? I: CaO (s) + CO2 (g) → CaCO3 (s) II: 4 KNO3 (s) → 2 K2O(s) + 2 N2(g) + 5 O2(g)III: NaHSO4 (aq) + NaOH (aq) → Na2SO4 (aq) + H2O (l)
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