Exam 1 Flashcards
1
Q
Qualitative
A
descriptive / not numbers
2
Q
Quantitative
A
how much / numbers
3
Q
SI unit of length
A
meters (M)
4
Q
SI unit of mass
A
Kilograms (Kg)
5
Q
SI unit of time
A
seconds (s)
6
Q
SI unit of temperature
A
kelvin (K)
7
Q
SI unit of amount
A
Mole (mol)
8
Q
SI unit of current
A
Amp (A)
9
Q
SI unit of energy
A
Joule (J)
10
Q
tera-
A
10¹²
11
Q
giga-
A
10⁹
12
Q
mega-
A
10⁶
13
Q
kilo-
A
10³
14
Q
deci-
A
10⁻¹
15
Q
centi-
A
10⁻²
16
Q
mili-
A
10⁻³
17
Q
micro-
A
10⁻⁶
18
Q
nano-
A
10⁻⁹
19
Q
pico-
A
10⁻¹²
20
Q
Accuracy vs Precision
A
accurate - how close the values are to the true
precise - how close the answers are to each other
21
Q
how many sig figs do you keep when you ÷ or x
A
keep as many SF as the number with the least SF
22
Q
how many sig figs do you keep when you + or -
A
keep as many SF as the number with the fewest decimal places
23
Q
density
A
mass/volume
24
Q
from C to K
A
C + 273.15 = K
25
From K to C
K - 273.15 = C
26
intensive property (+ examples)
does not depend on the amount
(volume, mass, time)
27
extensive property (+ examples)
depends on the amount
(density)
28
Homogenous
uniform mixture
29
Heterogenous
has different components/properties
(ex: a drink with ice)
30
1 mol =
6.02 x 10²³
31
ion
charged atom
32
isotope
an atom with a different number of neutrons
33
positive ion
cation
34
negative ion
anion
