· The cylinder of a bicycle pump has a volume of 1.25 L at standard pressure (1 atm). A bicycle tire is to be inflated to a total pressure of 4.75 atm. To reach this pressure, the
confined
gas in a bicycle pump is compressed to a smaller volume. At what volume does the
confined gas exert a pressure of 4.75 atm?

Iknow #2 is d. i just need to know why

Which factor is likely to impact the possible number of compounds ?

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!