Oxygen And Oxides Flashcards
1
Q
Percentage of oxygen in the air?
A
21%
2
Q
Percentage of nitrogen in the air?
A
78%
3
Q
Percentage of argon in the air?
A
0.93%
4
Q
Percentage of CO2 in the air?
A
0.033%
5
Q
Preparation of oxygen what is the catalyst?
A
Manganese oxide.
6
Q
What kind of reaction is the preparation of oxygen?
A
Catalytic decomposition reaction.
7
Q
Properties of CO2?
A
Denser than air, soluble in water at a high temperature.
8
Q
What does CO2 do to the atmosphere?
A
Prevents heat leaving the atmosphere.
