Oxidation and Reduction

• In electrolysis, the anode is the positive oxidation electrode
• Galvanic cells have a +ve spontaneous reaction
• Electrolysis needs an external source to react
• In galvanic cells, the cathode is the positive reduction electrode
• In electrolysis, electrons flow from the anode to the cathode (negative to positive because the e- are attracted to the positive cathode side)
• In electrolysis, the cathode is the negative reduction electrode
• Electrolysis is a -ve and non-spontaneous reaction
• Galvanic cells do not need power to react
• In galvanic cells, the anode is the negative oxidation electrode
• the colour of cr3+ is green