You have a large balloon you want to fill, but you have very little helium left. You blow up the balloon with air first, which has nitrogen at 0.700 atm, oxygen at 0.235 atm, and other gases at 0.017 atm. If the balloon has a final pressure of 1.150 atm, what is the pressure of the helium you added after the air

Explain how carbon monoxide can cause death

Who discovered a pattern to the elements in 1869?

Which of the following warnings would an agricultural chemist tell a farmer who wants to recycle his or her own ammonia? recycling ammonia is a difficult process that sometimes takes weeks. recycling ammonia requires a degree in biochemistry or a related field. recycling ammonia can be harmful because it is highly flammable and toxic. recycling ammonia costs too much money considering the price of the necessary chemicals.