0973 04 Electrochemistry CORE

Front

What are electrolytes?

Back

An ionic compound in the molten state or dissolved in water, it undergoes electrolysis

Front

Magnesium carbonate is insoluble. What do you need to do before it will conduct electricity?

Back

Melt it

Front

What is electrolysis?

Back

The decomposition of an ionic compound, when molten or in aqueous solution, by the passage of an electric current

Front

What is the negative electrode called in electrolysis?

Back

the cathode

Front

What is the positive electrode called in electrolysis?

Back

the anode

Front

What ore is aluminium extracted from?

Back

Bauxite

Front

How is aluminium is extracted from its ore?

Back

by electrolysis

Front

What is produced at the cathode when molten aluminium oxide undergoes electrolysis?

Back

Aluminium

Front

What is produced at the anode when molten aluminium oxide undergoes electrolysis?

Back

Oxygen

Front

When an ionic compound is dissolved in water, what ions are present in the solution?

Back

1) Positive and negative ions from the ionic compound 2) Hydrogen ions (H⁺) and hydroxide ions (OH⁻) from the water