The pressure of a sample of helium is 2.0 atm in a 200-ml container. if the container is compressed to 10 ml without changing the temperature, what is the new pressure?

40 atm

Explanation:

Boyle’s law states that for a fixed amount of gas the pressure is inversely proportional to the volume of the gas at constant temperature.

P1V1 = P2V2

Where P1 is pressure and V1 is volume at the first instance

And P2 is pressure and V2 is volume at the second instance

Substituting the values in the equation

2.0 atm x 200 mL = P2 x 10 mL

P2 = 40 atm

The new pressure is 40 atm

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence