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?

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?

Draw the lewis dot structure for each of the following polyatomic ions