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From the balanced molecular equations, write the complete ionic and net ionic equations for the following:...

From the balanced molecular equations, write the complete ionic and net ionic equations for the following: (a) K2C2 O4 (aq) + Ba(OH)2 (aq) ⟶ 2KOH(aq) + BaC2 O4 (s) (b) Pb(NO3 )2 (aq) + H2SO4 (aq) ⟶ PbSO4 (s) + 2HNO3 (aq) (c) CaCO3 (s) + H2SO4 (aq) ⟶ CaSO4 (s) + CO2 (g) + H2 O(l)

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Answer #1

(a) balanced molecular equation :

K2C2 O4 (aq) + Ba(OH)2 (aq) -------------> 2KOH(aq) + BaC2O4 (s)

complete ionic :

2 K+ (aq) + C2O42- (aq) + Ba+2 (aq) + 2 OH- (aq) -------------> 2 K+ (aq) + 2 OH- (aq) + BaC2O4 (s)

net ionic :

Ba+2 (aq) + C2O42- (aq)    ---------------> BaC2O4 (s)

(b)

Pb(NO3 )2 (aq) + H2SO4 (aq) ------------> PbSO4 (s) + 2HNO3 (aq)

complete ionic :

Pb+2 (aq) + 2 NO3-(aq) + 2 H+(aq) + SO42-(aq) -------------> PbSO4 (s) + 2 H+ (aq) + 2 NO3- (aq)

Net ionic :

Pb+2 (aq) + SO42-(aq) -------------> PbSO4 (s)

(c)

CaCO3 (s) + H2SO4 (aq) ⟶ CaSO4 (s) + CO2 (g) + H2 O(l)

Complete ionic :

CaCO3 (s) + 2 H+ (aq) + SO42- (aq) -------------> CaSO4 (s) + CO2 (g) + H2O (l)

Net ionic :

CaCO3 (s) + 2 H+ (aq)   ----------> Ca+2 (aq) + CO2 (g) + H2O (l)

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