Question

11. Write a balanced Molecular, Complete Ionic and Net Ionic equations for the following reactions and identify the type of reaction that occurs when:

A)Aqueous nitric acid is mixed with aqueous potassium cyanide.

B)Aqueous barium nitrate is mixed with aqueous lithium hydroxide.

C)Aqueous barium hydroxide is mixed with aqueous sulfuric acid.

D)Zinc metal is mixed with acetic acid, resulting in the formation of zinc ions and hydrogen gas.

Answer 1

All phases are(aq) Aqueous, otherwise stated

a)

molecular

HNO3+KCN --> HCN + KNO3

ionic

H+ + NO3- +K+ + CN- --> HCN + K+ + NO3-

net ionic, get rid of K and NO3

H+ + CN- --> HCN

b)

no reaction, all ions remain in solution,

Ba(NO3)2 + 2LiOH = LiNO3 + Ba(OH)2

c)

molecular ( acid + base reation)

Ba(OH)2 + H2SO4 = 2H2O(l) + BaSO4(s)

ionic

Ba+2 + 2OH- + 2H+ + SO4-2= 2H2O(l) + BaSO4(s)

net ionic (no spectator ions)

Ba+2 + 2OH- + 2H+ + SO4-2= 2H2O(l) + BaSO4(s)

as wwell

d)

molecular

Zn(s) + CH3COOH --> Zn(CH3COO)2 + H2(g)

ionioc

Zn(s) + CH3COOH --> Zn+2 + 2CH3COO- + H2(g)

net inoic (all species)

Zn(s) + CH3COOH --> Zn+2 + 2CH3COO- + H2(g)