Copper does not dissolve in water. Copper(II) oxide is a solid that will not dissolve in water, but it does react with dilute hydrochloric acid. Which method is used to separate copper from a mixture containing copper and copper(II) oxide?
- Adissolve the mixture in water then filter
- Bdissolve the mixture in water then crystallise
- Creact the mixture with dilute hydrochloric acid then filter
- Dreact the mixture with dilute hydrochloric acid then crystallise