The questions are in the picture and if you need to make it big so you could see it click on it and make it big i need

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

Find the number of moles of argon in 364g of argon.

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.