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WorksheetsY7 Oxidation and Combustion of Fuels
Total questions: 11
Worksheet time: 7mins
What is another word for 'burning'?
(a)
Fuels formed by living organisms that died millions of years ago are called (a) fuels.
A substance that contains only hydrogen and carbon is called a _______________
Combustion
Hydrogen
Fossil
Hydrocarbon
This word equation models the combustion reaction between hydrogen and oxygen.
hydrogen + oxygen --> water
Is oxygen a reactant or product of this reaction?
Reactant
Product
This word equation models the combustion reaction between hydrogen and oxygen.
hydrogen + oxygen --> water
Is water a reactant or product of this reaction?
Reactant
Product
Complete this word equation to model the combustion reaction of carbon and oxygen:
carbon + oxygen ---> ___________ ____________
(a)
What does the cobalt chloride paper test for?
Hydrogen
Carbon dioxide
Water
Oxygen
What does the limewater test for?
Hydrogen
Carbon dioxide
Water
Oxygen
How will the thermometer reading change during the experiment?
The temperature reading will increase
The temperature reading will stay the same
The temperature reading will decrease
What will happen to the cobalt chloride paper in this experiment?
Blue to Pink (due to hydrogen present)
Pink to blue (due to carbon dioxide present)
Blue to pink (due to water present)
Pink to blue (due to water present)
What will happen to the appearance of the limewater in this experiment?
Colourless to cloudy
Cloudy to colourless
Colourless to pink
Blue to pink
