1) Write a net ionic equation for the reaction that occurs when aqueous solution
ID: 1034160 • Letter: 1
Question
1) Write a net ionic equation for the reaction that occurs when aqueous solutions of potassium cyanide and hydroiodic acid are mixed.
2) Write a net ionic equation for the reaction that occurs when zinc carbonate(s) and hydroiodic acid are combined.
3) Write the net ionic equation for any reaction that may be predicted when aqueous solutions of potassium carbonate and lead(II) nitrate are combined.
4) Consider the reaction when aqueous solutions of ammonium iodide and sodium hydroxide are combined. The net ionic equation for this reaction is:
Explanation / Answer
1.KCN(aq) + HI(aq) -------------> KI(aq) + HCN(aq)
K^+ (aq) +CN^-(aq) + H^+ (aq) +I^-(aq) -------------> K+ (aq) +I^-(aq) + HCN(s)
CN^-(aq) + H^+ (aq) -------------> HCN(s) net ionic equation
2. ZnCO3(s) +2 HCl(aq) -------------> ZnCl2 (aq) + H2O(l) + CO2(g)
ZnCO3(s) +2 H^+(aq) +2Cl^-(aq) -------------> Zn^+2+ (aq) +2Cl^- (aq) + H2O(l) + CO2(g)
ZnCO3(s) +2 H^+(aq) -------------> Zn^+2+ (aq) + H2O(l) + CO2(g)
3. K2CO3 (aq) + Pb(NO3)2(aq) ------------> PbCO3(s) + 2KNo3(aq)
2K^+(aq)+CO3^2- (aq) + Pb^2+ (aq) +2(NO3)^-(aq) ------------> PbCO3(s) + 2K^+ (aq)+2No3^(aq)
CO3^2- (aq) + Pb^2+ (aq) + ------------> PbCO3(s) net ionic equation
NH4I + NaOH ----------------> NH4OH + NaI
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