Properties of water Flashcards
What are the 6 properties of water?
water is polar
water is an excellent solvent
has high specific heat capacity
has high latent heat fi vaporisation
has cohesive and adhesive properties
water is less dense as a solid than as a liquid
state hydrophilic
“water loving” polar substances disassociate in water
state hydrophobic
“water hate” non-polar substances are repelled by water and group together
what is a polar compound
charged compounds
water has a _________ nature
dipolar
define dipolar
has both positively and negatively charged areas
what is a hydrogen bond
attraction between hydrogen and oxygen
how does having a high specific heat capacity help the environment
provides a constant temperature in an aquatic environment as it takes a lot of energy to change temperature
Why is water a good solvent
Negative oxygen clings to sodium cations and pull them away
Positive hydrogen regions cling to chloride anions and pull them away
Why is latent heat of vaporisation high
Hydrogen bonding
What are the roles of water
Functions of cells and transportation
Metabolic reactions occur
Polarity causes osmotic effects
As temp decreases, density _______
Decreases
What is cohesion
A force that sticks molecules together
What does cohesion create in water
High surface tension
What is adhesion
A bond forms between the negative side of one water molecule and the positive side of another.
