CH-1059
Preparing salts
Chemistry · Secondary 4 · Medium · Preparing salts
Which pair of substances will react together to prepare a pure sample of solid copper(II) sulfate crystals by the method "addition of excess solid to acid, filtration, then crystallisation"?
- Copper(II) oxide and dilute sulfuric acid
- Copper(II) sulfate and dilute hydrochloric acid
- Copper metal and dilute sulfuric acid
- Copper(II) nitrate and sodium sulfate solution
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