The hydrogen ions react with electrons given by the cathode (–charged electrode), forming H2, molecular Hydrogen. Hydroxid ions remain, making the water more alkaline around the cathode. Conversely, close to the anode (+ charged electrode), hydroxid ions give electrons to the anode, eventually forming O2 (Oxygen). Hydrogen ions remain, making the water more acidic around the anode. The two kinds of water are separated by membranes and released through different hoses.