Grade 10 Chemistry Evaluation 1 - Electrolysis

Vocabulary flashcards covering the electrolysis of molten ionic compounds and electrical conductivity from Grade 10 Chemistry Evaluation 1.

Cathode reaction in molten lead (II) chloride electrolysis

Lead ($Pb$) is formed because $Pb^{2+}$ ions gain electrons at the negative electrode.

Anode reaction in molten lead (II) chloride electrolysis

Chlorine gas ($Cl_2$) is formed because chloride ions ($Cl^-$) lose electrons at the positive electrode.

Electrical conductivity of solid zinc bromide ($ZnBr_2$)

Solid zinc bromide does not conduct electricity because its ions are fixed and not free to move.

Electrolysis products of molten silver bromide

Bromine ($Br_2$) is formed at the anode and silver is formed at the cathode.

Electrolysis products of molten lead (II) chloride

Chlorine gas is formed at the anode and lead ($Pb$) is formed at the cathode.

Electrolysis products of molten aluminium oxide

Oxygen is formed at the anode and aluminium is formed at the cathode.