the term used to describe a liquid substance formed by heating ionic compounds and metal ores.

A positively charged electrode, in an electrolysis cell, to which the anions are attracted.

A negatively charged electrode, in an electrolysis cell, to which the cations are attracted.

Electrolysis of molten salts

Combined science

Principles of electrolysis

Electrolysis: extracting aluminium

Electrolysis of aqueous solutions

Electrolysis: brine

Electrolysis: purifying copper

Electrolysis: aqueous solutions practical

In the Using Earth's Resources unit, pupils learned about the extraction, production and uses of hydrocarbons from crude oil, as well as metal extraction.

This unit focuses on electrolysis, electrode reactions, and predicting products, including competing reactions in solutions. It explains metal extraction through electrolysis and writing ionic equations. It also covers tests for gases like oxygen, hydrogen, carbon dioxide, and chlorine.

Electrolysis

What happens when molten calcium chloride is electrolysed?

What state must salts be in to conduct electricity for electrolysis?

What is produced at the cathode during the electrolysis of molten sodium chloride?

Why can molten salts conduct electricity?

What happens to cations during electrolysis?

What is the overall charge of the products formed during electrolysis?

When metal atoms react to form ions they ...

Which of the following elements form negatively charged ions?

How does a sodium atom become a sodium ion (Na⁺)?

 What is the total charge of an ionic compound?

a process of using electricity to break down ionic compounds into their elements

a process of using heat to break down ionic compounds into their elements

a  process of using pressure to break down ionic compounds into their elements

a process of using electricity to break down molecules into their elements

a process of using heat to break down molecules into their elements

Electrolysis of molten salts

Lesson outcome