A compound is 80.7 % carbon and 19.3 % hydrogen. Calculate the empirical formula.
SHOW ALL WORK

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

Select the correct answer. wax is a nonpolar substance. in which type of substance is it the most soluble?

If you need to add 27.50ml of a solution, which piece of glassware would you use to deliver this volume and explain how you would determine if the 27.50 ml was measured?