Question

which of the following can be separated by adding water, stirring and filtering

Answer 1

This separation method can be used to separate soluble compounds and insoluble compounds. Soluble compound will dissolve in water, while insoluble compound may form a suspension, float on top of the liquid, or may form a sediment. Then, you can separate it by filtering. For example, you can separate sulfur (insoluble) and sugar (soluble), of calcium carbonate (insoluble) and sodium carbonate (soluble).