Combustion reactions Flashcards
pass my tests (26 cards)
What is a combustion reaction?
A chemical reaction that occurs when a substance combines with oxygen to produce heat and light.
True or False: Combustion reactions always produce carbon dioxide and water.
True
Fill in the blank: The general formula for a combustion reaction can be represented as _____ + O2 → CO2 + H2O.
Fuel
What are the two main types of combustion reactions?
Complete combustion and incomplete combustion.
Which type of combustion occurs with a sufficient supply of oxygen?
Complete combustion.
What is produced during incomplete combustion?
Carbon monoxide and soot, in addition to carbon dioxide and water.
Multiple Choice: Which of the following is NOT a common fuel for combustion reactions? A) Methane B) Hydrogen C) Oxygen D) Gasoline
C) Oxygen
What is the primary purpose of combustion in engines?
To convert fuel into energy.
True or False: Combustion reactions release energy.
True
What is the role of a catalyst in combustion reactions?
To lower the activation energy and increase the rate of the reaction.
Fill in the blank: The combustion of hydrocarbons primarily produces _____ and water.
Carbon dioxide
What common household item can undergo combustion?
Natural gas used for cooking.
Multiple Choice: Which of the following is a byproduct of incomplete combustion? A) Water B) Carbon Dioxide C) Carbon Monoxide D) Oxygen
C) Carbon Monoxide
What is the environmental impact of combustion reactions?
They contribute to air pollution and greenhouse gas emissions.
True or False: Combustion reactions can occur without a flame.
True
What is the term for the energy released during a combustion reaction?
Heat of combustion.
Fill in the blank: The combustion of wood is an example of _____ combustion.
Biomass
What is a common use of combustion in industry?
Generating electricity in power plants.
Multiple Choice: Which gas is a product of burning fossil fuels? A) Nitrogen B) Oxygen C) Carbon Dioxide D) Hydrogen
C) Carbon Dioxide
What safety measure is commonly used to prevent the dangers of combustion in homes?
Installing smoke detectors.
True or False: All combustion reactions require a spark to initiate.
False
What is the main component of natural gas that undergoes combustion?
Methane.
Fill in the blank: The combustion of propane is often used in _____ torches.
Welding
What can be a result of excessive carbon monoxide from incomplete combustion?
Carbon monoxide poisoning.
