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Copy of 8Ea Burning Fuels alpha (1/7/2025)
By Katie Bruce
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Last updated 8 months ago
10 questions
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What are hydrocarbons made of?
Carbon and oxygen
Hydrogen and oxygen
Carbon and hydrogen
Carbon, hydrogen, and oxygen
Which of these is an example of a hydrocarbon?
Water (H₂O)
Methane (CH₄)
Carbon dioxide (CO₂)
Sodium chloride (NaCl)
What is crude oil mainly made of?
Metals
Hydrocarbons
Water
Rocks
Which process is used to separate crude oil into fractions?
Filtration
Crystallization
Fractional distillation
Electrolysis
What are the products of the complete combustion of a hydrocarbon?
Carbon dioxide and water
Carbon monoxide and water
Oxygen and water
Carbon and water
What is a common product of incomplete combustion?
Carbon dioxide
Carbon monoxide
Water
Which of these is a sign of incomplete combustion?
A) A bright blue flame
B) A smoky yellow flame
C) The production of water vapor
D) A loud explosion
How do you test for the presence of carbon dioxide gas?
A) It makes limewater cloudy
B) It pops a lit splint
C) It turns damp red litmus paper blue
D) It turns universal indicator green
What is the chemical name of limewater?
A) Calcium hydroxide solution
B) Sodium hydroxide solution
C) Potassium hydroxide solution
D) Ammonium hydroxide solution
During combustion, how is carbon dioxide formed?
A) By reacting carbon with oxygen
B) By splitting hydrogen from water
C) By mixing carbon monoxide with water
D) By heating hydrocarbons without oxygen