Lead acid cell: Discharging: Anode

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Car_battery_discharging.gif

Lead atoms in the lead electrode are [oxidized/reduced]: they [gain/lose] two electrons each. This changes them into [positively/negatively/neutrally] charged lead [atoms/ions] of formula Pb2+. Since [oxidation/reduction] occurs at this electrode, we call it the anode. The Pb2+ ions leave the electrons they had just lost behind on the . This makes this electrode, the anode, [positively/negatively/neutrally] charged, creating a between it and the other electrode, which is positive relative to it. This causes electricity to flow between the two electrodes.