The positive (+) electrode which is lead dioxide converts into lead sulphate crystals. (TVP: Maybe rewrite is as: The positive electrode, which is lead dioxide, reacts with the electrolyte sulphuric acid to form lead sulphate crystals and water in a reduction reaction),
The negative electrode (-) which is made of lead also changes into lead sulphate crystals. (Or: The negative elctrode which is lead, also reacts with sulphuric acid to form lead sulphate crystals and water in an oxidation reaction).
The electrolyte bath in which the reactions take place is largely transformed into water (H2O).
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