What is the total gas pressure in a sealed flask that contains oxygen at a partial pressure of 0.40 atm and water vapor at a partial pressure of 0.49 atm?

0.89 atm

Explanation:

P(total) = P1 + P2 + on

But since there are just two gases the total pressure is the sum of the two partial pressures which are

0.49 + 0.40 = 0.89 atm

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation:

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.