Answer:
is the total pressure of the tank.
Explanation:
Partial pressures of nitrogen = 
Partial pressure of oxygen = 
Total pressure of gases in the tank = P
Applying Dalton's law of partial pressures :


is the total pressure of the tank.
It would be insulator because an insulator kills electricity, it can't travel through it.
Answer:
Liquid
Explanation:
Gas is too far away, solid is close but it is not in a random pattern
Solids are tightly compacted
Liquids are medium
And gases are very spaced and floating around