Combustion Reaction Analysis
A Grade 12 Chemistry worksheet exploring combustion reactions, their types, products, and applications.
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Combustion Reaction Analysis
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Read each question carefully and provide your answers in the space provided. Show all your work for calculations.
1. Which of the following is NOT a characteristic of a complete combustion reaction?
Produces carbon dioxide and water
Occurs with a limited supply of oxygen
Releases a significant amount of heat energy
Typically produces a blue flame
2. What is the primary role of an oxidizer in a combustion reaction?
To provide the fuel for the reaction
To absorb heat generated by the reaction
To accept electrons from the fuel
To act as a catalyst
3. The three essential components for a combustion reaction to occur are fuel, an oxidizer, and .
4. Incomplete combustion of hydrocarbons often produces and carbon monoxide.
5. A reaction that releases heat energy to its surroundings is known as an reaction.
6. Write the balanced chemical equation for the complete combustion of propane (C₃H₈).
7. Explain the difference between complete and incomplete combustion in terms of product formation and oxygen availability.
8. All combustion reactions are exothermic.
True
False
9. A higher activation energy generally leads to a faster combustion reaction.
True
False
Match the term on the left with its definition on the right.
10. Flammable liquid
a. The minimum temperature at which a liquid produces sufficient vapor to ignite in air.
11. Autoignition temperature
b. The lowest temperature at which a substance will spontaneously ignite in a normal atmosphere without an external source of ignition.
12. Flash point
c. A liquid with a flash point below 37.8 °C (100 °F).
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