A 20.0L container holds 0.650 mol of He gas at 37.0C at a pressure of 628.3torr. The new pressure inside the container will be
torr if the volume is reduced to 12.OL, the temperature increased to 1770, and 1.25 mol of
additional He gas was added.

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2