Classify each reaction. (33) Na2CO3(s) + SiO2(s)

Classify each reaction.(33) Na2CO3(s) + SiO2(s) → Na2SiO3(l) + CO2(g)(34) 2 Mg(NO3)2(s) → 2 Mg(NO2)2(s) + O2(g)(35) 3 HNO2(aq) → 2 NO(g) + NO3-(aq) + H3O+(aq)(36) BaCO3(s) → BaO(s) + CO2(g)(37) 2 Eu2+(aq) + 2 H+(aq) → 2 Eu3+(aq) + H2(g)(38) [Ag(NH3)2]+(aq) + 2 CN-(aq) → [Ag(CN)2]-(aq) + 2 NH3(aq)(39) MgO(s) + 2 HCl(aq) → MgCl2(aq) + H2O(l)(40) CaO(s) + SO2(g) → CaSO3(s)(41) 2 NO(g) + O2(g) → 2 NO2(g)(42) N2(g) + 2 O2(g) → 2 NO2(g)

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