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Key Questions:

1. How can you separate a solution of copper II sulfate to extract low grade copper ores? (include equipment)
   • Electrolysis can be used to extract low grade copper ores. Equipment needed: DC power supply, wires, graphite electrodes, beaker, copper sulfate solution. Connect the graphite electrodes to the power supply, immerse into the solution and switch on. Wait. copper ions will be collected at cathode and oxygen gas will be collected at the anode.