Y8 Combustion Homework

Which of these is not a fossil fuel?

• Wood

• Coal

• Natural gas

• Oil

Why do we burn fuels?

• To produce carbon dioxide

• To lose energy

• To have fun

• To release energy

What are the three sides of the fire triangle?

• Fuel, oxygen and heat

• Fuel, carbon dioxide and heat

• Wood, water and oxygen

• Wood, oxygen and heat

What are the products of combustion?

• Hydrogen + Oxygen

• Carbon dioxide + Hydrogen

• Carbon + Water

• Carbon dioxide + Water

What are the types of combustion?

• Complete and incomplete

• Possible and impossible

• Accurate and inaccurate

• Hot and cold

What does this hazard symbol mean?

• Explosive

• Toxic

• Flammable

• Corrosive

What does incomplete combustion produce, which complete combustion does not?

• Carbon dioxide

• Carbon monoxide

• Water

• Heat

Which type of combustion happens when there is limited oxygen?

• Complete

• Incomplete

Most fuels are made from...

• Nitrogen

• Argon

• Hydrocarbons

• Hydrogen

Is combustion a reversible reaction?

• Yes

• No