Grade 8 Term 3 Quiz

When you 'burn' a reactant, what are you reacting it with?

• water

• oxygen

• air

• hydrogen

All chemical reactions:

• create new substances

• change the states of the reactants

• have at least two reactants

• are not reversible

The substances that react in a chemical reaction are called:

• products

• chemicals

• reactants

• molecules

The substances that are made in a chemical reaction are called:

• reactants

• products

• chemicals

• molecules

What do we call the type of reaction that takes place between magnesium and oxygen?

• A displacement reaction

• An oxygen reaction

• A magnesium reaction

• A combustion reaction

What do we call the type of reaction that takes place between an acid and an alkali?

• A displacement reaction

• A neutralisation reaction

• A magnesium reaction

• A combustion reaction

Iron + Oxygen -> ____ _____

______ + oxygen -> calcium oxide

metal + oxygen -> _____ _____

non-metal + oxygen -> _________ _______