E. Which of the following is an example of a precipitation reaction? a. Si(s) + 2 Cl2(g) â SiC1.0 b. 3 H2(g) + N2(g) â 2 NH3(g) c. Zn(s) + CuSO4(aq) â ZnSO4(aq) + Cu(s) d. Mg12(ag) + 2 NaOH(aq) â Mg(OH)-(s) +2Nal(ag) e. CH,() + 2 O2(g) â CO2( ) + 2 H,O(g) G. Which of the following is an example of a net ionic equation? a. HI(aq) + KOH(ag) â H2O() + KI(aq) b. Na,SO4(aq) + BaBr(ag) â BaSO4(s) + 2 NaBr(aq) c. Ag' (aq) + Br(aq) + CsNOfaq) â AgBr(s) + Cs' (aq) + NO3-(aq) d. 2 H. (aq) + CO32(aq) â H,O() + CO2(g) e. None of the above equations are an example of a net ionic equation