Using the solubility rules, predict whether barium sulfate (BaSO₄) is soluble or insoluble in water. Explain your reasoning.

Barium sulfate is insoluble because sulfates are generally soluble except when combined with barium, strontium, calcium, silver, or lead.

Will a precipitate form when solutions of lead(II) nitrate (Pb(NO₃)₂) and potassium iodide (KI) are mixed? Explain using solubility rules.

Yes, a precipitate of lead(II) iodide (PbI₂) will form because lead halides are insoluble.

Nitrates have no exceptions to the solubility rule, meaning they are always soluble, regardless of the cation they are paired with.

I can use a Solubility chart to predict whether a precipitate will form in an aqueous solution.

1
A solubility table helps determine if a compound is soluble (aqueous) or insoluble (solid).
2
Group 1 metals, ammonium, nitrate, and acetate are generally soluble with no exceptions.
3
Halogens are typically soluble, except when combined with silver, lead, or mercury, which makes them insoluble.