Soluble salts can be made by reacting an acid with a metal hydroxide, a metal oxide, or a metal carbonate.
Insoluble salts can be made by using a precipitation reaction.
Complete the table to show which acid or metal compound is used to make each salt listed.
For each metal compound, state whether it would be used as a solid or in aqueous solution.
| Salt made | Acid used | Metal compound Name | Solid or aqueous solution |
|---|---|---|---|
| cobalt(II) chloride | cobalt(II) oxide | ||
| barium sulfate | sulfuric acid | aqueous solution | |
| sodium sulfate | sodium carbonate |
An acid is a source of hydrogen ions, H+\text{H}^+H+.
Write an equation to show the ions formed when nitric acid is dissolved in water.
Barium sulfate is an insoluble salt that can be prepared by reacting barium chloride with sodium sulfate.
Describe how you would prepare a pure, dry sample of barium sulfate starting from solid barium chloride and solid sodium sulfate.
