2.1 Properties of Water Flashcards
1
Q
Cohesion
A
Hydrogen bonding between H2O molecules (surface tension)
2
Q
Adhesion
A
Hydrogen bonding between H2O and other substances (e.g. capillary action)
2
Q
Name 5 properties of water
A
Adhesion & Cohesion, good solvent, lower density as a solid, high specific heat (amount of heat required to raise temperature), high heat of vaporization
3
Q
Why does water form hydrogen bonds with each other?
A
H+ attracted to O- (sticky molecule)
4
Q
Features of hydrogen bonds
A
Can occur with OH-, weak bond
5
Q
Polar covalent bond
A
Unequal sharing of electrons in a covalent bond
6
Q
Oxygen has higher…
A
Electronegativity (stronger attraction for electrons)
7
Q
Functions of ice
A
Insulates water below in lakes, nutrient cycling
