Using the following equation, if you used 20 moles of O2, how many moles of H2O would be produced? 2H2 + O2 → 2H2O

a)10 mol
b)40 mol
c)5 mol
d)20 mol

What is the solubility of substance?

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?