How many moles of a gas were added to an 8L balloon if it began with .24 moles and then increased to 19.8 L assuming constant pressure and temperature?

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption