Water Flashcards
(7 cards)
1
Q
Polarity
A
Where the molecule has regions of positivity and negativity due to electrons being closer to one atom (unequal sharing of atoms)
2
Q
Hydrogen bonds
A
Bonds formed inbetween polar molecules due to the polarity
Weak bonds in small numbers
3
Q
Characteristics of water
A
High boiling point Liquid at room temp (due to hydrogen bonds) High heat capacity Cohesive (mass flow) Surface tension
4
Q
Solvency importance
A
Helps transport compounds in / out of a cell
5
Q
Cohesion importance
A
Molecules stick together due to cohesions which means water can flow as a continuous stream (mass flow)
6
Q
High heat capacity importance
A
Creates a stable environment for aquatic animals as allot of energy is needed to change temp.
7
Q
Ice freezing importance
A
Creates an insulating layer above liquid water to maintain environment for organisms below
