year 9 term 4 chemistry

Which one of the following is not a fossil fuel?

• Wood

• Coal

• Petrol

• Natural Gas

What are the types of combustion?

• Complete and incomplete

• Incomplete and inexact

• Impossible and possible

• Computer and incomplete

A compound that contains only carbon and hydrogen and that produces carbon dioxide and water when burned is called a(n)

• binary compound
• carbonate
• ionic compound
• hydrocarbon

Tags

NGSS.MS-PS1-1

Combustion is when a __________ reacts with oxygen

• petrol

• fuel

• fire triangle

• carbon dioxide

What is the equation for aerobic respiration?

• C₆H₁₂O₆ + 6O₂ --> 6CO₂ + 6H₂O

• C₆H₁₂O₆ + O₂ --> CO₂ + H₂O

• C₆H₁₂O₆ + 6O₂ --> CO₂ + 6H₂O

• 6C₆H₁₂O₆ + 6O₂ --> 6CO₂ + 6H₂O

What is the purpose of respiration? Select the best answer.

• To release the chemical energy stored in glucose

• To generate heat

• To produce energy

• To absorb oxygen by diffusion

What is NOT product of complete combustion?

• carbon dioxide

• water

• carbon monoxide

Hydrocarbon fuel + oxygen ----> ___+____

(Select 2)

• CO₂

• O₂

• H₂O

• C_xH_y

What is needed for combustion to take place?

• fuel

• ignition temperature

• oxygen

• all of these

Why do we burn a fuel?

• To produce carbon dioxide

• To release energy

• To lose energy