WorksheetsCombustion
Total questions: 16
Worksheet time: 28mins
Name
Class
Date
1.
What happens in a chemical reaction?
4 lines
2.
Hydrocarbon is made of what two elements?
a)
Carbon monoxide
b)
Hydrogen
c)
Carbon
d)
Oxygen
e)
Calx
3.
Why does a hydrocarbon fuel combusting appear to lose mass?
4 lines
4.
ZINC + OXYGEN =
(a)
5.
Combustion is also a _______ reaction
a)
Oxidation
b)
Converging
c)
Exothermic
6.
What is a exothermic reaction?
4 lines
7.
How to test for carbon dioxide
4 lines
8.
How to test for anhydrous copper sulfate
4 lines
9.
How to test for hydrogen
4 lines
10.
Scientists used to think a product of combustion was
(a)
11.
Which of these is NOT needed for a fire?
a)
Heat
b)
Fuel
c)
Oxygen
d)
Friction
12.
Has unlimited oxygen
a)
Complete combustion
b)
Incomplete combustion
13.
Has limited oxygen
a)
Complete combustion
b)
Incomplete combustion
14.
Products of complete combustion
(a)
15.
Products of incomplete combustion
(a)
16.
What is the greenhouse effect?
4 lines
100 %
