Question

For each of the following, specify if a reaction does or does not occur when the two reagents are combined, and justify your choice of reaction or no reaction. For each combination where a reaction does occur, write balanced molecular and net ionic equations for that reaction.

(NH4)2CO3(aq) + MgBr2(aq) →

Ni(C2H3O2)2(aq) + K3PO4(aq) →

Sr(OH)2(aq) + HC2H3O2(aq) →

CuSO4(aq) + Co(NO3)2(aq) →

Cs2CO3(aq) + HI(aq) →

Sr(OH)2(aq) + HBr(aq) →

H2SO4(aq) + KOH(aq) →

HCl(aq) + H2NCH2CH2NH2(aq) →

HO2CCO2H(aq) + NaOH(aq) →

Answer 1

(NH4)2CO3(aq) + MgBr2(aq) →MgCO3(s) + 2NH4Br(aq)

2(NH4)⁺(aq) +CO3^2-(aq) + Mg⁺²(aq) +2Br^-(aq) →MgCO3(s) + 2NH4⁺(aq)+2Br^-(aq)

Removal of spectator ions to get net ionic equation

CO3^2-(aq) + Mg⁺²(aq) →MgCO3(s)

3Ni(C2H3O2)2(aq) +2 K3PO4(aq) → Ni3(PO4)2 (s) + 6CH3COOK

3Ni⁺²(aq)+ 6(C2H3O2)^-(aq) +6 K⁺(aq)+2PO4^3-(aq) → Ni3(PO4)2 (s) + 6CH3COO^-+6K⁺

removal of spectator ions to get net ionic equation

3Ni⁺²(aq) +2PO4^3-(aq) → Ni3(PO4)2 (s)

Sr(OH)2(aq) + 2HC2H3O2(aq) →Sr(CH3COO)2(aq) + 2H2O(l)

sr⁺² (aq) + 2OH^- + 2H⁺ + 2C2H3O2^- -------> Sr⁺² + 2C2h3O2^- +2 H2O

      2H⁺ (aq) + 2OH^- (aq) --------> 2H2O(l) net ionic equation

CuSO4(aq) + Co(NO3)2(aq) →Cu(NO3)2 (aq) + CoSo4(s)

Cu⁺²(aq)+SO4^2-(aq) + Co⁺²(aq)+(NO3)^-(aq) →Cu⁺²(aq) +2(NO3)^- (aq) + CoSo4(s)

SO4^2-(aq) + Co⁺²(aq) → CoSo4(s) net ionic equation

Cs2CO3(aq) + HI(aq) →2CsI (aq) + H2CO3(aq)

Sr(OH)2(aq) + 2HBr(aq) → SrBr2 (aq) + 2H2O(l)

Sr⁺² (aq)+2(OH)^-(aq) + 2H⁺(aq) +2Br^-(aq) → Sr⁺²(aq) +2Br^- (aq) + 2H2O(l)

2H⁺ (aq) + 2OH^- (aq) --------> 2H2O(l) net ionic equation

       

H2SO4(aq) + 2KOH(aq) → K2So4(aq) + 2H2O(l)

2H⁺(aq)+SO4^2-(aq) + 2K⁺(aq) +2OH^-(aq) → 2K⁺(aq)+So4^2-(aq) + 2H2O(l)

2H⁺ (aq) + 2OH^- (aq) --------> 2H2O(l) net ionic equation

HCl(aq) + H2NCH2CH2NH2(aq) → H2NCH2CH2NH3Cl(aq)

HO2CCO2H(aq) + NaOH(aq) →HO2CCO2Na(aq) + H2O(l)

2H⁺ (aq) + 2OH^- (aq) --------> 2H2O(l) net ionic equation