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Water (Polar Molecule (hydrogen atoms are more positive than oxygen atoms,…
Water
Polar Molecule
uneven distribution of charge within molecule
hydrogen atoms are more positive than oxygen atoms
as a result, hydrogen bonding can occur between water molecules causing them to stick together (cohesion)
the strong cohesion between molecules enables effective transport of water (e.g. up the xylem)
the strong cohesion makes the surface tension of water very high
the strong cohesion supports columns of water
It has a high latent heat of vaporisation
The hydrogen bonds mean that a lot of energy is required to evaporate the water
Evaporation of water provides a cooling effect with little water loss
It is a metabolite in reactions
E.g.
condensation
hydrolysis
(it is used in forming and breaking bonds)
It is a solvent
Allows gases, enzymes and waste product to digest
It has a high specific heat capacity
Water molecules stick together with hydrogen bonds
so a lot of energy is required to break the bonds
Water is less dense in solid form than in liquid form
hence how ice floats