How to make a girl happy? (To the two people who will get these free points, please copy the following and paste this in your milk)

If you know, you know...

P. S. It's chemistry; what did you expect?

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .