What are halogen Nd their examples

What type of reaction is illustrated? 2c12o5 = 2cl2 + 502

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?

Drug abuse will not lead to physical and psychological dependence. true or false ?