Which end of a H2O molecule has a slight negative charge?
Oxygen end
Hydrogen end
What kind of bond is formed when two water molecules are within close contact of one another?
Ester
Phosphodiester
Hydrogen
Glycosidic
Cohesion is the sticking together of water molecules. It is not strong as the hydrogen bonds are very weak.
Water attracts polar molecules.
Water has....
A low specific heat capacity
A high latent heat of vaporisation
A high surface tension
A maximum density at 6 degrees
Hydrogen bonds
Hydrogen bonds are formed when two water molecules are close together and their opposite charges attract each other. This weak attraction forms the hydrogen bond between the neighbouring molecules.
At what temperature does water reach its maximum density?
1 degrees
3 degrees
4 degrees
5 degrees
6 degrees
8 degrees
Which of the following are examples of where water is important in transport.
In the phloem
In the transpiration stream
During active transport
In blood
During digestion
Surface tension allowed the surface film of the standing water to support aquatic insects.
A small amount of heat energy is required for a rise in the temperature of water.
