SC-870
Filtration
Lower Sec Science · Secondary 1 · Medium · Filtration
A mixture of chalk powder and copper(II) sulfate solution is prepared. Which method should be used to obtain dry copper(II) sulfate crystals from the mixture?
- Use a magnet, then decant the water.
- Filter to remove chalk, then heat the filtrate to form crystals.
- Distil the mixture, then discard the distillate.
- Use a separating funnel, then crystallise the residue.
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