Chemistry solubility question I have two lab report questions that can\'t handle

Question

Chemistry solubility question

I have two lab report questions that can't handle.

Those are two questions, and data is attached on

https://drive.google.com/folderview?id=0B1exMUmFXpFeN0xDYk1tN0hVNHM&usp=drive_web.

Devise a series of solubility rules related to anions to summarize your experimental evidence. For anions that form primarily insoluble salts, a rule might take the form: all oxides are insoluble except.. .Group several anions in a single rule wherever that is plausible. Compare your rules with those given in your textbook. What differences or discrepancies are present? Why do think that these occurred? MEMORIZE YOUR RULES SO THAT YOU CAN PREDICT CHEMICAL REACTIONS. Write both a complete molecular equation and a net ionic equation for 10 reactions where you observed a precipitate according to your data in Table 3.1.

Explanation / Answer

for upper fig.

Exchange reactions
In exchange (or metathesis) reactions, two ionic compounds are reacted together
in aqueous solution, and the resulting products reflect an exchange of the anions and
cations. If one or both of the products is insoluble in water, a solid is formed which is
called a precipitate.
AB (aq) + CD (aq) ? AD (s or aq) + CB (s or aq) (1)
A series of solubility rules has been devised which allows one to predict which ionic
compounds are insoluble and would form a precipitate for a given reaction. In today

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