1) Write a balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer coefficients. A precipitate forms when aqueous solutions of chromium(II) chloride and lead(II) nitrate are combined. Use the pull-down boxes to include states such as (s) or (aq). 1a) Write a balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer coefficients. A precipitate forms when aqueous solutions of magnesium chloride and potassium hydroxide are combined. Use the pull-down boxes to include states such as (s) or (aq). 1b) Consider the reaction when aqueous solutions of iron(III) sulfate and calcium chloride are combined. The net ionic equation for this reaction is: 1c) Consider the reaction when aqueous solutions of magnesium acetate and sodium sulfide are combined. The net ionic equation for this reaction is: Solution 1. CrCl2(aq) + pb(NO3)2(aq) ------------------- PbCl2(s) + Cr(NO3)2(aq) 1a. MgCl2(aq) + 2 KOH(aq) --------------- Mg(OH)2(s) + 2 KCl(aq) 1b Fe2(SO4)3(aq) +3 CaCl2(aq) ---------------- 2FeCl3(s) +3 CaSO4(aq) 1c Mg(CH3COO)2(aq) + Na2S(aq) -------------- MgS(s) + 2 NaCH3COO(aq) .

1. 1) Write a balanced equation for the double-replacement precipitation reaction described,
using the smallest possible integer coefficients.
A precipitate forms when aqueous solutions of chromium(II) chloride and lead(II) nitrate are
combined.
Use the pull-down boxes to include states such as (s) or (aq).
1a) Write a balanced equation for the double-replacement precipitation reaction described,
using the smallest possible integer coefficients.
A precipitate forms when aqueous solutions of magnesium chloride and potassium hydroxide
are combined.
Use the pull-down boxes to include states such as (s) or (aq).
1b) Consider the reaction when aqueous solutions of iron(III) sulfate and calcium chloride are
combined. The net ionic equation for this reaction is:
1c) Consider the reaction when aqueous solutions of magnesium acetate and sodium sulfide are
combined. The net ionic equation for this reaction is:
Solution
1.
CrCl2(aq) + pb(NO3)2(aq) ------------------- PbCl2(s) + Cr(NO3)2(aq)
1a.
MgCl2(aq) + 2 KOH(aq) --------------- Mg(OH)2(s) + 2 KCl(aq)
1b
Fe2(SO4)3(aq) +3 CaCl2(aq) ---------------- 2FeCl3(s) +3 CaSO4(aq)

2. 1c
Mg(CH3COO)2(aq) + Na2S(aq) -------------- MgS(s) + 2 NaCH3COO(aq)