8Ea - Burning fuels Flashcards
1
Q
What is fuel?
A
A chemical substance from which stored energy can be transferred usefully to make things happen, eg hydrogen.
2
Q
What is the formula or a chemical reaction in a fuel?
A
Hydrogen + oxygen -> water
3
Q
What is combustion?
A
A chemical process in which a substance reacts rapidly with oxygen and gives off heat.
4
Q
What happens during combustion?
A
During combustion, the carbon and hydrogen atoms react with oxygen, the carbon reacts to produce carbon dioxide.
5
Q
What happnes when you blow carbon dioxide in limewater?
A
It goes from clear to cloudy.
6
Q
What happens when you add sulphate liquid to dry coblat paper?
A
It goes from blue to white.
