Apassageway connecting neighboring osteocytes in an osteon isa
a. central canal
b. lamella
c. canaliculus
d. osteocanal

D. h2o + h2o > h3o + oh- confirmed.

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.

Yes, well how much of all chemistry is to do with numbers? a lot! so being good at mathematics makes a huge aspect of chemistry so much easier but if you aren't mathematical then you can work at it and become reasonably proficient at it.hope i ~