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- 1. Multiple ChoiceWhat is combustion?The separation of a fuel into its component partsThe combination of a fuel with oxygenThe cooling of a fuel to its solid stateThe evaporation of a fuel into a gas
- 2. Multiple ChoiceWhat are the necessary components for combustion to occur?Fuel and waterFuel and carbon dioxideFuel and oxygenFuel and nitrogen
- 3. Multiple ChoiceWhat happens to the number of atoms during combustion?The number of atoms decreasesThe number of atoms increasesThe number of atoms stays the sameThe number of atoms fluctuates
- 4. Multiple ChoiceWhich of the following is an example of combustion?Melting iceBoiling waterBurning woodMixing salt and water
- 5. Multiple ChoiceWhat is the role of oxygen in combustion?To cool down the fuelTo break apart the fuelTo combine with the fuelTo remove impurities from the fuel
- 6. Multiple ChoiceWhat is the role of fuel in combustion?To combine with oxygenTo remove impurities from oxygenTo cool down oxygenTo break apart oxygen
- 7. Multiple ChoiceWhat is the result of combustion?A decrease in temperatureA release of energyA solid substanceA decrease in pressure
- 8. Multiple Choice
Which of the following are the products in combustion?
(SELECT ALL THAT APPLY)
Water
Oxygen
Carbon Dioxide
Heat
Fuel (often incl. carbon bonds)
- 9. Multiple Choice
Which of the following are the reactants in combustion?
(SELECT ALL THAT APPLY)
Water
Oxygen
Carbon Dioxide
Heat
Fuel (often incl. carbon bonds)
- 10. Multiple Choice
What are some facts about carbon?
(SELECT ALL THAT APPLY)
It's in every living thing
It can make four connections
Its bonds hold a lot of energy
It's what makes up fossil fuels
Breaking its bonds releases energy
- 11. Multiple Choice
In a chemical reaction...
(SELECT ALL THAT APPLY)
New elements are made
Elements recombine
Energy can be released
The process can go either forward or backwards
- 12. Multiple Choice
What three things does combustion need?
Fuel, oxygen, water
Fuel, oxygen, heat
Heat, oxygen, fire
- 13. Multiple Choice
When burning a fire, if I remove Oxygen, then the fire will...
no longer burn
keep burning
EXPLODE
- 14. Multiple Choice
True or False: Combustion is needed for cars that run on gasoline to move.
True
False
- 15. Multiple Choice
What are the products of cellular respiration?
Sugar and Oxygen
Carbon Dioxide, Water, and Energy
- Answer choicesTagsAnswer choicesTags