Based on difference in electronegativities between atoms, which is the most polar bond pair? chlorine(cl)- 3.61 sulfur(s)- 2.58 hydrogen(h)- 2.2 oxygen(o)- 3.44 fluorine(f)- 4 a. b. c. d

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

Consider the nuclear equation below. 239 > x + 4 he 94 2 what is x? 1.235 cm 96 2.243 u 92 3.235 u 92 4.243 cm 96

What is the number of moles in 15.0 g ash3?