Combustion Revision

Combustion is a scientific word for:

• exploding

• burning

• evaporating

• heat

A hydrocarbon is:

• Made of only hydrogen

• Contains carbon, hydrogen and other elements

• Made of wood

• Made of carbon and hydrogen only

Complete the equation: iron + oxygen →

• water

• iron oxide

• tin dioxide

• gold

Complete the equation: Hydrocarbon + oxygen →

• hydrogen + carbon

• carbon dioxide + water

• carbon dioxide + hydrogen

• carbon + water

Oxidation is:

• when a substance combines with oxygen

• when a substance dissolves in water

• No reaction

• An explosive reaction

When zinc burns it forms:

• water

• zinc hydroxide

• zinc carbonate

• zinc oxide

When 4.8 g of magnesium reacts with 3.2 g of oxygen, how much magnesium oxide is formed?

• 1.6 g

• 4.9 g

• 7.0 g

• 8.0 g

The fire triangle is heat, fuel and…

• fire

• water

• oxygen

• foam

What is the warning on this hazard symbol?

• Explosive

• Flammable

• Harmful

• Poisonous

The best way to put out a small electrical fire is:

• spray it with water

• spray with foam

• cover with a wet cloth

• spray with a dry powder extinguisher