Chemistry · Unit 2 · Aqueous solutions and acidity · Aqueous solutions and molarity
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A student performs a series of tests on an unknown aqueous solution. When silver nitrate solution is added, a white precipitate forms that dissolves in excess ammonia. When barium chloride solution is added, no precipitate forms. Which pair of ions is most likely present in the unknown solution?
Identify the cation that forms a white precipitate with sodium sulfate solution but forms no precipitate with sodium chloride solution.
A student mixes aqueous solutions of barium chloride and sodium sulfate in a test tube. A white precipitate forms. Identify the precipitate and write the balanced ionic equation for the precipitation reaction.