B, H. + 30,0 2HBO + 2H,0 How many moles of 0, will be needed to burn 36.1mol of B. H.?

How many moles of gas are present if p=11 atm, v=12l, t=185k?

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.