A Which pair of molecules is not a polar bond?
Select the correct answer.
N-O
C-0
0-H
0-0

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.

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

One student said that the investigation was not valid (a fair test). write a plan for the investigation that includes improvements to the method and apparatus