Final Notes 2 Flashcards
1
Q
Primary cell eg
A
Zinc-carbon
Alkaline Manganese
Silver oxide
2
Q
Secondary cell eg
A
Lithium ion
Nickel metal oxide
Lead acid accumulator
3
Q
Ice vs water
A
Ice
H bonds
Directional bonds open structure
Water
Relative motion
Closely packed
4
Q
NaOH why not standard
A
Absorbs H2O
Reacts with CO2
5
Q
Drying how
A
Dessicator with anhydrous CaCl CaO MgO solid
6
Q
Hydrogen oxygen fuel cell
A
H2 + 2OH- -> 2H2O
O2 + 2H2O + 4e -> 4OH-
7
Q
C60 structure
A
Hollow sphere
Simple molecular
8
Q
Substance soluble in H2O
A
H bond
Small molecular size
9
Q
Frational Distillation 原理
A
Different bp
Larger molecular size higher bp
10
Q
Electrolyte definition
A
Conduct electricity when dissolved or molten
11
Q
Coal vs natural gas
A
Coal less completely
Coal more impurities
12
Q
Limestone
A
CaCO3
13
Q
Limewater
A
Ca(OH)2 (aq)
14
Q
Slaked lime
A
Ca(OH)2 (s)
15
Q
Quicklime
A
CaO
Lime
