Zumdahl, Chemistry 10th Edition

TEST BANK For Zumdahl, Chemistry 10th Edition
scanning tunneling microscope - ANSWER: Instrument used to "see" atoms.

Diatomic - ANSWER: two atom molecule.

Scientific Method - ANSWER: 1. Making observations ( collecting data)
2. Suggesting possible explanations (formulate hypothesis)
3. Do experiments to test the possible explanation (testing hypothesis)

Theory - ANSWER: a set of tested hypotheses that gives an overall explanation of
some natural phenomenon.
This is an interpretation, not a direct observation.
An attempt to explain "why".

Observation - ANSWER: Something that is witnessed and can be recorded.

Law of conservation of mass - ANSWER: the total mass of materials is not affected by
a chemical change in those materials.

Law - ANSWER: summarizes what happens.

Measurement - ANSWER: always consists of two parts:
1. a number
2. a scale (or Unit)

giga - ANSWER: 1,000,000,000

Exponent: 10^9

mega - ANSWER: 1,000,000

Exponent: 10^6

kilo - ANSWER: 1,000

Exponent 10^3

hecto - ANSWER: 100

Exponent: 10^2

deka - ANSWER: 10

Exponent: 10^1

, deci - ANSWER: 0.1

Exponent: 10^-1

centi - ANSWER: 0.01

Exponent: 10^-2

milli - ANSWER: 0.001

Exponent: 10^-3

micro - ANSWER: 0.000001

Exponent: 10^-6

nano - ANSWER: 0.000000001

Exponent: 10^-9

pico - ANSWER: 0.000000000001

Exponent: 10^-12

femto - ANSWER: 0.000000000000001

Exponent: 10^-15

Mass : SI Unit - ANSWER: Unit: kilogram
Abbreviation: kg

Length : SI Unit - ANSWER: Unit: meter
Abbreviation: m

Time : SI Unit - ANSWER: Unit: second
Abbreviation: s

Temperature : SI Unit - ANSWER: Unit: kelvin
Abbreviation: K

Electric current : SI Unit - ANSWER: Unit: ampere
Abbreviation: A

Amount of substance : SI Unit - ANSWER: Unit: mole
Abbreviation: mol

Luminous intensity : SI Unit - ANSWER: Unit: candela