brown fracture nonmetallic, grey fracture metallic, yellow fracture concodel nonmetallic, white cleavage 3 directions nonmetallic, white fracture concodel nonmetallic, black fracture nonmetallic -which of the above would be the most difficult to scratch ​

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?