Combustion, oxidation and the fire triangle
7th grade (Year 8 in England) · 16 questions · Common Core: NGSS.MS-PS1-2 · England: KS3 Chemistry: Chemical reactions
Name
Date
Score/ 16
Question 1
Combustion: which statement is NOT true?
- A. Burning fossil fuels releases carbon dioxide.
- B. Combustion is an endothermic reaction.
- C. Rusting is a slow oxidation reaction.
- D. Hydrogen burns to make only water.
Question 2
A fire blanket is thrown over a burning pan. Which side of the fire triangle does it remove?
- A. fuel
- B. none
- C. heat
- D. oxygen
Question 3
Complete the word equation: zinc + oxygen → ?
Answer
Question 4
Combustion: which statement is NOT true?
- A. Rusting is a slow oxidation reaction.
- B. Hydrogen burns to make only water.
- C. Combustion is an endothermic reaction.
- D. Combustion is a reaction with oxygen that releases energy.
Question 5
What are the products when methane (natural gas) burns completely?
- A. carbon monoxide and soot
- B. oxygen and hydrogen
- C. carbon dioxide and water
- D. methane and oxygen
Question 6
Complete the word equation: zinc + oxygen → ?
Answer
Question 7
Combustion: which statement is NOT true?
- A. Water is the best way to put out an oil fire in a pan.
- B. Rusting is a slow oxidation reaction.
- C. Combustion is a reaction with oxygen that releases energy.
- D. Hydrogen burns to make only water.
Question 8
Why is a gas boiler with a poor air supply dangerous?
- A. It makes the water too pure
- B. Incomplete combustion produces toxic carbon monoxide
- C. It stops producing heat completely
- D. It produces too much oxygen
Question 9
Complete the word equation: copper + oxygen → ?
Answer
Question 10
Combustion: which statement is NOT true?
- A. Combustion is a reaction with oxygen that releases energy.
- B. Rusting is a slow oxidation reaction.
- C. Water is the best way to put out an oil fire in a pan.
- D. Burning fossil fuels releases carbon dioxide.
Question 11
What are the products when methane (natural gas) burns completely?
- A. carbon dioxide and water
- B. oxygen and hydrogen
- C. methane and oxygen
- D. carbon monoxide and soot
Question 12
Complete the word equation: sodium + oxygen → ?
Answer
Question 13
Combustion: which statement is NOT true?
- A. Hydrogen burns to make only water.
- B. Rusting is a slow oxidation reaction.
- C. A fire can burn without oxygen.
- D. Combustion is a reaction with oxygen that releases energy.
Question 14
What are the products when methane (natural gas) burns completely?
- A. carbon dioxide and water
- B. methane and oxygen
- C. oxygen and hydrogen
- D. carbon monoxide and soot
Question 15
Complete the word equation: copper + oxygen → ?
Answer
Question 16
Combustion: which statement is NOT true?
- A. Hydrogen burns to make only water.
- B. Combustion is an endothermic reaction.
- C. Combustion is a reaction with oxygen that releases energy.
- D. Burning fossil fuels releases carbon dioxide.
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