Calculate: If I started with 2L of a 5M solution how many more moles will I have added if I now have 3L if a 10M solution?

What is the mass of 0.750 mole of aluminum oxide, al2o3?

What is dhmo? hint: you find it everywhere something is wet..

4al + 3o2 → 2al2o3 what does the "3" in front of o2 stand for? a) it indicates that there are 5 oxygen atoms after you add the coefficient and the subscript. b) it indicates that that there are are total of 6 oxygen atoms all bonded together as a single molecule. c) it indicates that there are 3 oxygen molecules chemically bonded to each other in the reaction. d) it indicates that there are 3 separate oxygen molecules in the reaction.