AP Chem Note Packet 1: Chemical Foundations

theory

hypotheses are assembled in an attempt at explaining “why”th

model

we use models to explain natural phenomenon

scientific law

a summary of observed (measurable) behavior

a _____ summarizes what happens; a _____ (______) is an attempt to explain WHY it happens

law, theory, model

mega

10^6

kilo

10³

hecto

10²

deka

1061

deci

10^-1

centi

10^-2

milli

10^-3

micro

10^-6

nano

10^-9

1 cm³ is how many ml?

1 ml

accuracy

correctness; agreement of a measurement with the true value

precision

reproducibility; degree of agreement among several measurements

1 m = ? yd

1.094 yd

1 in = ? cm

2.54 cm

1 kg = ? lb

2.205

1 lb = ? g

453.6 g

1 L = ? qt

1.06 qt

1 mi = ? yd

1760 yd

Convert Fahrenheit to Celsius

F = C(9/5) + 32

Convert Kelvin to Celsius

K = C + 273.15

Define vapor

the gas phase of a substance that is normally a solid or liquid at room temperature

Define fluid

that which can flow (gases and liquids)