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- 1. Multiple ChoiceAnother term for burning isFire triangleMagnesium oxideCombustionBustion
- 2. Multiple Choice
Hydrocarbon fuel + oxygen ----> ___+____
(Select 2)
CO2
O2
H2O
CxHy
- 3. Multiple Choice
What is essential for a combustion reaction to begin?Carbon dioxideFuelFuel, oxygen and heatWater and oxygen - 4. Multiple ChoiceWhich of the following chemical reactions involve combustion?A forest fireHuman digestionA car using gasolineAll of the above
- 5. Multiple Choice
8.7: Combustion is when a __________ reacts with oxygen
petrol
fuel
fire triangle
carbon dioxide
- 6. Multiple ChoiceWhich one of the following is not a fossil fuel?WoodCoalPetroleumNatural Gas
- 7. Multiple ChoiceThe word equation for combustion is:
fuel + oxygen -->
water + ________ __________Carbon dioxideLimewater - 8. Multiple Choice
Combustion is a ____________
Physical process
Chemical process
Both of these processes
None of these
- 9. Multiple Choice
Substance which catch fire are called
Acids
Bases
Burners
Combustible
- 10. Multiple Choice
Which is non combustible substance?
Wood
Paper
Straw
Iron nails
- 11. Multiple Choice
Conservation of Energy says that...
energy can be created
energy can be destroyed
energy can be transformed
- 12. Multiple Choice
True or False: Combustion is needed for cars that run on gasoline to move.
True
False
- 13. Multiple Choice
This image is an example of
atom
molecule
- 14. Multiple Choice
These are pictures of
atom
molecule
- 15. Multiple Choice
Which of the following is an example of a chemical change?
water freezes to form ice
sugar dissolves in water
gasoline burns in a car engine
a piece of metal expands when it is heated
- 16. Multiple Choice
What is the BEST definition of a chemical reaction?
A change in matter that produces one or more NEW substances
When two things combine and EXPLODE.
- Answer choicesTagsAnswer choicesTags