Chapter 6- electrolysis Flashcards
what is an ion?
an atom that looses or gains electrons
what is an electric current?
the flow of electrons through something, measured in amps
ionic boding
metal and non-metal bonding, dot and cross diagrams
positively charged ions…
…cations
negatively charged ions…
…anions
electrolysis is…
…a process that uses chemical current to make chemical reactions occur
electrolysis can be used…
… by extracting metals from their ores
the electrolysis diagram!
the water is the electrolyte
positive electrode is the anode, because attracts anions
negative electrode is the cathode because of cations
connected by DC currernt
must have one…
…metal and the other non-metal
what happens to the ions at the electrodes?
at the anode, cations are lost. at the cathode. anions are lost
metals are produced…
…at the cathode
OILRIG
oxidation is loss, reduction is gain
