Gas Chemistry Flashcards
(8 cards)
1
Q
Chemical property of hydrogen
A
Highly flammable
Neutral to litmus paper
2
Q
Chemical property of oxygen
A
Supports combustion
neutral to litmus paper
3
Q
Use for carbon dioxide and why
A
Fire extinguishers because it doesn’t support combustion
4
Q
Weight compared to air
Carbon dioxide
Nitrogen
Hydrogen
Oxygen
A
Denser
Same
Less dense
Same
5
Q
Lime water
A
Calcium hydroxide
6
Q
Clean fuel definition
A
As it burns only produces water which is non-polent
7
Q
How to make carbonoic acid
A
Carbon dioxide + water
PH5 is a weak acid colour yellow
8
Q
Uses for oxygen
A
Welding and in Medicines for patients with difficulty breathing these are due to it supporting combustion
