a type of reaction in which oxygen bonds to elements of the reactants

a compound containing oxygen that is formed during an oxidation reaction

refers to the corrosion of iron or steel, in the presence of water and oxygen

when a metal reduces in size due to a chemical reaction

Chemical reactions: oxidation

Science

Characteristics of chemical reactions

Conservation of mass and balanced symbol equations

Chemical reactions: combustion

Chemical reactions: decomposition

Chemical reactions: precipitation

In the Acids and Bases unit, pupils will build on their understanding of chemical reactions to learn about the properties of acids, bases, alkalis, and the neutralisation reaction.

In the Atoms, Elements and Compounds unit, pupils learned about atoms, elements, and compounds and how particles reorganise in a chemical reaction.

This unit covers the conservation of mass in changes of state and chemical reactions, including atom rearrangement. It also focuses on representing reactions with formulae and equations, exploring combustion, decomposition, and displacement, and distinguishing chemical from physical changes.

Understanding chemical reactions

Physical activity and equipment requiring safe use

In an oxidation reaction involving magnesium and oxygen, which of the following is a correct product?

What are the three necessary components for combustion to occur?

{{}} is a type of reaction in which oxygen bonds to elements of the reactants.

The formation of water on a metal surface.

The corrosion of iron or steel in the presence of water and oxygen.

The melting of iron at high temperatures.

The reaction of metals with oxygen to form metal oxides.

An oxide is a compound containing {{}} that is formed during an oxidation reaction.

When a metal reduces in size due to a chemical reaction.

A reaction in which oxygen bonds to elements of the reactants.

Match the key words to their definitions:

A substance made of two or more different types of atoms chemically bonded.

A pure substance consisting of only one type of atom.

A substance that cannot change physical state.

Which of the following best describes an element?

What happens to the total mass of substances during a chemical reaction?

Substances present at the start of a reaction.

Substances formed by a chemical reaction.

A symbolic representation of a chemical reaction.

The classification of a chemical reaction.

Match the following terms with their definitions:

A {{}} is a substance made of two or more elements chemically bonded.

Why is it important to follow safety protocols in the laboratory?

A {{}} change results in the formation of new substances with different chemical properties, such as burning or rusting.

Starter Quiz

Which of the following best describes an element?