Exam 1

Question 1

Qualitative

Answer 1

descriptive / not numbers

Question 2

Quantitative

Answer 2

how much / numbers

Question 3

SI unit of length

Answer 3

meters (M)

Question 4

SI unit of mass

Answer 4

Kilograms (Kg)

Question 5

SI unit of time

Answer 5

seconds (s)

Question 6

SI unit of temperature

Answer 6

kelvin (K)

Question 7

SI unit of amount

Answer 7

Mole (mol)

Question 8

SI unit of current

Answer 8

Amp (A)

Question 9

SI unit of energy

Answer 9

Joule (J)

Question 10

tera-

Answer 10

10¹²

Question 11

giga-

Answer 11

10⁹

Question 12

mega-

Answer 12

10⁶

Question 13

kilo-

Answer 13

10³

Question 14

deci-

Answer 14

10⁻¹

Question 15

centi-

Answer 15

10⁻²

Question 16

mili-

Answer 16

10⁻³

Question 17

micro-

Answer 17

10⁻⁶

Question 18

nano-

Answer 18

10⁻⁹

Question 19

pico-

Answer 19

10⁻¹²

Question 20

Accuracy vs Precision

Answer 20

accurate - how close the values are to the true
precise - how close the answers are to each other

Question 21

how many sig figs do you keep when you ÷ or x

Answer 21

keep as many SF as the number with the least SF

Question 22

how many sig figs do you keep when you + or -

Answer 22

keep as many SF as the number with the fewest decimal places

Question 23

density

Answer 23

mass/volume

Question 24

from C to K

Answer 24

C + 273.15 = K

Question 25

From K to C

Answer 25

K - 273.15 = C

Question 26

intensive property (+ examples)

Answer 26

does not depend on the amount
(volume, mass, time)

Question 27

extensive property (+ examples)

Answer 27

depends on the amount
(density)

Question 28

Homogenous

Answer 28

uniform mixture

Question 29

Heterogenous

Answer 29

has different components/properties
(ex: a drink with ice)

Question 30

1 mol =

Answer 30

6.02 x 10²³

Question 31

ion

Answer 31

charged atom

Question 32

isotope

Answer 32

an atom with a different number of neutrons

Question 33

positive ion

Answer 33

cation

Question 34

negative ion

Answer 34

anion