Can someone help me with b. and d.

Which is a characteristic of mixtures?

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

Identify the electromagnets with poles that are reversed from the electromagnet shown above