3. Water and Life Flashcards
1
Q
Polar Molecule
A
Molecule in which the overall charge is unevenly distributed.
2
Q
Four properties of water
A
Cohesion, temperature moderation, floats upon freezing and versatility as a solvent
3
Q
Evaporative cooling example
A
Occurs when the hottest molecules with the greatest kinetic energy leave as a gas.
4
Q
Hydronium ion
A
H3O+ or simply H+
5
Q
Hydroxide ion
A
OH-
6
Q
Ammonia
A
NH3
7
Q
Ammonium ion
A
NH4+
8
Q
Carbonic acid to Bicarbonate Reaction
A
H2CO3 HCO3- + H+
9
Q
An acid has more
A
H+
10
Q
A base has more
A
OH-
11
Q
Buffer
A
Substance that minimizes changes in the concentrations of H+ and OH- in a solution by accepting or donating hydrogen ions to a solution when they have been depleted.
12
Q
Carbonic Acid
A
H2CO3
13
Q
Bicarbonate
A
HCO3-
14
Q
Carbonic acid to Bicarbonate Reaction
A
H2CO3 HCO3- + H+
15
Q
Carbonate ion
A
CO3-2
