Question

1.Write a balanced equation for the precipitation reaction that occurs when aqueous solutions of silver(I) nitrate and sodium carbonate are combined. 2.Write the net ionic equation for the precipitation reaction that occurs when aqueous solutions of nickel(II) nitrate and potassium phosphate are combined. 3.Write a net ionic equation for the overall reaction that occurs when aqueous solutions of ascorbic acid (H₂C₆H₆O₆) and sodium hydroxide are combined. 4.Write a net ionic equation for the reaction that occurs when solid barium carbonate is combined with excess aqueous nitric acid. specify states such as (aq) or (s) in all 4

Answer 1

2AgNO3 (aq) + Na2CO3 (aq) -----------> Ag2CO3(s) + 2NaNO3(aq)

2Ag^+(aq) +2NO3^- (aq) + 2Na^+(aq) +CO3^2- (aq) -----------> Ag2CO3(s) + 2Na^+(aq) +2NO3(aq)

removal of spectator ions to get net ionic equation

2Ag^+(aq) +CO3^2- (aq) -----------> Ag2CO3(s) net ionic equation

2.

3Ni(NO3)2 + 2K3PO4 (aq) --------------> Ni3(PO4)2 (s) + 6KNO3(aq)

3Ni^+2(aq) +6(NO3)^-(aq) + 6K^+ (aq) +2PO4^3- (aq) --------------> Ni3(PO4)2 (s) + 6K^+ (aq) +6NO3^-(aq)

removal of spectator ions to get net ionic equation

3Ni^+2(aq) +2PO4^3- (aq) --------------> Ni3(PO4)2 (s) net ionic equation

3.

   H₂C₆H₆O6 (aq) + NaOH (aq)-------------> NaHC₆H₆O_6(aq) + H2O(l)

H^+ (aq) +HC₆H₆O6^- (aq) + Na^+(aq) +OH^- (aq)-------------> Na^+(aq) +HC₆H₆O_6^-(aq) + H2O(l)

removal of spectator ions to get net ionic equation

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

4.

BaCO3 (s) + 2HNO3(aq) ----------------> Ba(NO3)2 (aq) + H2CO3(aq)

BaCO3 (s) + 2H^+(aq) +2NO3^-(aq) ----------------> Ba^2+(aq)+2(NO3)^- (aq) + 2H^+(aq)+CO3^2-(aq)

removal of spectator ions to get net ionic equation

BaCO3 (s) ----------------> Ba^2+ (aq) +CO3^2-(aq) net ionic equation