A bigger difference in electronegativity between two molecules means higher polarity and a stronger bond. Electronegativity increases on the periodic table as you go up a group and to the right. Ex: CsF has a very high polarity
The formula for pOH is -log(M)
So, all we need to do is plug in that number! -log(4.5x10^-3)
That gives us 2.3, so the pOH is 2.3 :)
All the fossil fuels...coal, oil, gas...are examples of no return enable energy resources.
Here we assume that disintegration has occur so the normal t½ formular will not be used
mathematically we..⅛×5600 =700
therefore it is about 700years option A
