Starting with copper metal, describe how to prepare a pure sample of copper (II) carbonate.

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Explanation:

React excess copper metal with concentrated sulphuric acid or concentrated nitric acid until effervescence stops. Filter to remove excess copper. To the filtrate add either sodium carbonate or potassium carbonate to form copper (II) carbonate, to precipitate copper (II) carbonate wash and dry between filter paper

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.