Exam 1 Flashcards
(55 cards)
1
Q
H
A
Hydrogen
2
Q
He
A
Helium
3
Q
Li
A
Lithium
4
Q
Be
A
Beryllium
5
Q
B
A
Boron
6
Q
C
A
Carbon
7
Q
N
A
Nitrogen
8
Q
O
A
Oxygen
9
Q
F
A
Fluorine
10
Q
Ne
A
Neon
11
Q
Na
A
Sodium
12
Q
Mg
A
Magnesium
13
Q
Al
A
Aluminum
14
Q
Si
A
Silicon
15
Q
P
A
Phosphorus
16
Q
S
A
Sulfur
17
Q
Cl
A
Chlorine
18
Q
Ar
A
Argon
19
Q
K
A
Potassium
20
Q
Ca
A
Calcium
21
Q
Sc
A
Scandium
22
Q
Ti
A
Titanium
23
Q
V
A
Vanadium
24
Q
Cr
A
Chromium
25
Mn
Manganese
26
Fe
Iron
27
Co
Cobalt
28
Ni
Nickel
29
Cu
Copper
30
Zn
Zinc
31
Ga
Gallium
32
Ge
Germanium
33
As
Arsenic
34
Se
Selenium
35
Br
Bromine
36
Kr
Krypton
37
Mega
10^6
38
Kilo
10^3
39
Deci
10^-1
40
Centi
10^-2
41
Milli
10^-3
42
Micro
10^-6
43
Nano
10^-9
44
What is the equation for density?
D=m/v
45
Convert 185km to nm
1.85 x 10^14
46
Convert 1.5kg to Mg
1.5 x 10^-3 Mg
47
Convert 25nl to ml
2.5 x 10^-5 ml
48
What does it mean when a measurement is precise?
If they are consistent with one another
49
What does it mean when measurements are accurate?
If they are close to the actual value
50
Nonzero numbers are ?
Always significant
51
Zeros between nonzero digits
Are always significant
52
Zeros at the beginning are
Never significant
53
Zeros at the ? Depend on the decimal
End
54
What is the sig fig rule for addition and subtraction
Limit final answers significant figures should the placeholder of the measurement with the largest placeholder or significant figure
55
What is the sig fig rule for multiplication and division?
Limit Final answer to the same number of significant figures as a measurement with the fewest significant figures
