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

Arock can be broken down into different kinds of substances by physical processes. no chemical reactions are needed to separate different parts of a rock into pure substances. this is because a rock is a(n)

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

When the mercury level in a barometer decreases that atmospheric pressure has