Question 1
Identify the net ionic equation for the reaction (if any) that occurs when aqueous solutions of K
2S and Fe(NO
3)
2 are mixed.
◦ Fe
2+(
aq) + S
2-(
aq) → FeS(
s)
◦ Fe
2+(
aq) + S
2-(
aq) + 2K
+(
aq) + 2NO
3-(
aq) → FeS(
s) + 2K
+(
aq) + 2NO
3-(
aq)
◦ K
+(
aq) + NO
3-(
aq) → KNO
3(
s)
◦ Fe
2+(
aq) + S
2-(
aq) + 2K
+(
aq) + 2NO
3-(
aq) → Fe
2+(
aq) + S
2-(
aq) + 2KNO
3(
s)
◦ No reaction occurs.
Question 2
Identify the net ionic equation for the reaction (if any) that occurs when aqueous solutions of H
2SO
4 and KOH are mixed.
◦ 2K
+(
aq) + SO
42-(
aq) → K
2SO
4(
s)
◦ H
+(
aq) + OH
-(
aq) + 2K
+(
aq) + SO
42-(
aq) → H
2O(
l) + K
2SO
4(
s)
◦ H
22+(
aq) + OH
-(
aq) → H
2(OH)
2(
l)
◦ H
+(
aq) + OH
-(
aq) → H
2O(
l)
◦ No reaction occurs.