3. “ 3. I think that chlorine gas appears at one electrode as copper appears at the other electrode.” 1. “ I think the copper appears at one electrode because it is a metal and magnetic.” 2. “ I don’t think that any electrons are involved in this process.” Copper Chloride Solution Cu Cl 2 A gas A solid
4. “ 6. Chlorine is a non-metal and covalent and therefore does not conduct electricity.” “ 4. Copper is formed at the anode (+) and is therefore positive.” “ 5. Cl 2 bubbles appear at the anode and So Cl 2 must be negative.” Copper Chloride Solution Cu Cl 2 Chlorine copper
5. “ 9. Copper ion needs electrons to form copper metal at the cathode (-).” 7. “ Copper is a metal and forms ionic compounds. Copper chloride is therefore an ion and conducts electricity” “ 8. Chlorine must be formed from the negative chloride ion at the anode (+).” Copper Chloride Solution Cu Cl 2 Chlorine Copper
