consists of metal atoms bonded to oxygen atoms.

when a reactant is present in a greater amount than is necessary to completely react.

consists of non-metal atoms bonded to oxygen atoms.

Metal oxides and non-metal oxides

Science

Acids and bases

pH scale and universal indicator solution

Practical: red cabbage indicator solution

Chemical reactions: acid and metal

Chemical reactions: neutralisation

Chemical reactions: acid and metal carbonate

In the unit Making salts, pupils will build on this knowledge to learn about the production of pure salts, and about why acids are acidic and how bases can neutralise them. 

In the Understanding Chemical Reactions unit, pupils learned how atoms rearrange to form new substances during chemical reactions.

This unit covers acids, alkalis, and their neutralisation reactions, the pH scale, and the reactions of acids with metals and alkalis. It also examines the chemical properties of metal and non-metal oxides. Emphasis is on evaluating risks, using appropriate techniques, and making observations.

Physical activity and equipment requiring safe use

Chromium oxide is a metal oxide. What is a metal oxide?

Lithium oxide dissolves in water. What colour will universal indicator turn in the solution that is formed?

Complete the equation for the following reaction: 
magnesium oxide + hydrochloric acid  → magnesium chloride + ...

What colour will universal indicator paper show when it is used to test a non–metal oxide dissolved in water?

Which of the following types of reaction occurs between metal oxides and acids?

A pupil reacts an acid with a base, producing calcium sulfate and water. Choose an acid and a base from the following list which could have been used to produce this salt.

The release of gas bubbles from a liquid, often heard as fizzing.

When a metal is worn away due to a chemical reaction.

A compound made from a metal and non–metal element(s).

Match the following key terms to their definition.

Where are non–metal elements found in the periodic table?

a substance that does not dissolve in a solvent 

a substance that does not dissolve in water

The process of evaporating water from a solution to form crystals is called ...

What name is given to a substance that reacts with acids and neutralises them?

Exit Quiz