Answer:
The main reason why air is cooled before nitrogen and oxygen are obtained is because these two gases are much more soluble in cold air than in warm air. As a result, if air were not cooled before these gases were separated, they would simply mix back together again.
Answer:
A. flooding
Explanation:
At high elevations air becomes thinner so a person may not be receiving enough oxygen which can cause dizziness. Flooding typically happens at sea level.
More information??? Confused
There are 1000 mL in a L.
12.5 L = 12.5(1000) mL = 12500 mL
12500 mL = 12.5 L
Hope this helps!
B. Chemical energy to start a chemical reaction