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Predict whether the following combinations will result in a reaction. Write a ba

ID: 1023519 • Letter: P

Question

Predict whether the following combinations will result in a reaction. Write a balanced reaction for those reactions. Indicate you understand the specific reactions by writing the net ionic equation for the reaction. Hopefully you would have memorized the solubility rules before attempting to answer these questions. It is not to be assumed that all of these reactions are precipitation reactions however. The answers for these questions are not included. You are expected to spend some time in the library over the summer. Finding a freshman chemistry textbook in the library and reading the chapter of on aqueous reactions can easily check these reactions.

E)An aqueous solution of lithium sulfide is combined with an aqueous solution of zinc bromide.

F)An aqueous solution of potassium hydroxide is combined with an aqueous solution of sulfuric acid.

G)An aqueous solution of sodium carbonate is combined with an aqueous solution of nitric acid.

H)Sulfur dioxide is bubbled into distilled water.

I)An aqueous solution of zinc sulfate is combined with an aqueous solution of lead (II) nitrate.

Explanation / Answer

E )

Li2S (aq) + ZnBr2 (aq) ----------------------------> ZnS (s) + 2 LiBr (aq)

net ionic equation:  

Zn+2 (aq) + S-2 (aq) --------------------> ZnS (s)

F)

2 KOH (aq) + H2SO4 (aq) ------------------------> K2SO4 (aq) + 2H2O (l)

net ionic :

2 OH- (aq) + 2H+ (aq) -----------------> 2H2O (l)

G)

Na2CO3 (aq)   +2 HNO3 (aq) -----------------------------> 2 NaNO3 (aq) + H2O (l) + CO2(g)

net ionic :

CO3-2 (aq) + 2H+ (aq) ----------------------> H2O (l) + CO2 (g)

H)

SO2 (g) + H2O (l) ---------------------> H2SO3 (aq)

I )

ZnSO4 (aq) + Pb(NO3)2 (aq) ----------------------> PbSO4 (s) + Zn(NO3)2 (aq)

net ionic:

Pb+2 (aq) + SO4-2 (aq) -------------------> PbSO4 (s)