Semester 1 Final Exam Flashcards
(63 cards)
1
Q
SI
A
System International of Units
*Metric System
2
Q
What is the metric system based on?
A
Multiples of 10
3
Q
Base unit of Length
A
Meter (m)
4
Q
Base unit of Volume
A
Liter (L)
5
Q
Base unit of Mass
A
Gram (g)
6
Q
milli-
A
1/1000
0.001
7
Q
centi-
A
1/100
0.01
8
Q
kilo-
A
1000
9
Q
Quantitative
A
Uses #’s to describe data
10
Q
Qualitative
A
Describes data without words
11
Q
’s without units are…..?
A
Meaningless
12
Q
Accuracy
A
How close the measurement is to the true value
13
Q
Precision
A
How well the measurement can be reproduced
14
Q
More marks=
A
More precision
15
Q
100mL Graduated Cyl
A
Estimate tenths
16
Q
50mL Graduated Cyl
A
Estimate tenths
17
Q
25mL Graduated Cyl
A
Estimate tenths
18
Q
10mL Graduated Cyl
A
Estimate hundredths
19
Q
50mL Buret
A
Estimate hundredths
20
Q
100mL Buret
A
Estimate tenths
21
Q
Atlantic/Pacific Rule
A
- If a decimal is “Present” start counting form the Pacific side at the first “non-zero” digit and continue counting until the # ends
- If the decimal is “Absent” start counting form the Atlantic side at the first “non-zero” digit and continue
22
Q
How many sig figs?
458g
A
3
23
Q
How many sig figs?
5480g
A
3
24
Q
How many sig figs?
0.0485g
A
3
25
How many sig figs?
40.0040850
9
26
Sig digs with adding and subtracting
Goes by place level
27
27.93
| +6.4
34.3
28
4.8
| +6.8765
11.7
29
Sig digs with multiplication and division
Goes by number of sig digs
30
2
| X 11
20
31
Distilled Water
Compound
32
Paint
Mixture
33
Sulfur
Element
34
Cereal
Mixture
35
Apple Juice
Solution
36
A bottle of pop fizzes over
Physical
37
Exploding of a bomb
Chemical
38
Liquefying Oxygen gas
Physical
39
When your body digests food
Chemical
40
The wax of a candle melts
Physical
41
Shape, volume, and compressibility of a solid
Definite Shape
Definite Volume
Incompressable
42
Shape, volume, and compressibility of a liquid
Indefinite Shape
Definite Volume
Virtually Incompressable
43
Shape, volume, and compressibility of a gas
Indefinite Shape
Indefinite Volume
Compressable
44
Intensive physical property
Not dependent on amount of material
| ex:/ Density
45
Extensive physical property
Dependent on amount of material
| ex:/ Mass
46
Law of Definite Proportions
Illustrate this law in individual samples, because they have definite proportions
47
Law of Multiple Proportions
Illustrate this law when all samples are looked at together, because they show multiple proportions
48
Ruthehrford's Gold Foil Experiment
* He shot positive alpha particles at a thin piece of gold foil. He expected them to go through with no change in direction, but a few were deflected
- Because most passed through, and some were deflected, he concluded that the atom was mostly empty space, and that the atom had a small, dense, positive charged nucleus.
49
2 Points of Dalton's Atomic Theory & how its changed
1) Atoms are indivisible
* Not true because of protons, neutrons and electrons
2) All atoms of a specific element are exactly the same
* Not true because of isotopes and ions
50
Alpha Particle
4
| 2 He
51
Beta Particle
0
| -1 e
52
On the EM spectrum, what has the lowest energy?
Radio Waves
53
On the EM spectrum, what has the highest energy?
Gama Rays
54
Atomic Radii Increases
Going down a group
55
Atomic Radii decreases
Across periods
56
Ionization Energy Increases
Across periods
57
Ionization Energy decreases
Down a group
58
The number of electrons a single d orbital can hold
2
59
How many d electrons can the second energy level hold
0
60
The number of s electrons in a single oxygen atom is
4
61
What is the total number of orbitals containing electrons in a nitrogen atom
5
62
The maximum number of electrons that can occupy a 3p sublevel is
6
63
Orbital diagram sublevel list
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6
