To a tank containing N2 at 2.0atm and O2 at 1.0atm, we add an unknown quantity of CO2 until the total pressure within the tank is 4.6atm. What is the partial pressure of the CO2?

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

clouds form

solid ice forms on leaves.

water droplets form on grass.