Chem Test Review Chp 1-2

1 lb = 453.6 g

1 lb = 453.59 g

C = (5/9) ( °F - 32°)

C = (5/9) ( °F - 32°)

mega

10^6

kilo

10³

deci

10^-1

centi

10^-2

milli

10^-3

micro

10^-6

nano

10^-9

pico

10^-12

element

can be decomposed

compound

cannot be decomposed

examples of physical properties

boiling point, density, mass, volume

what are intensive prop?=independent of amount of substance ex-boiling point, density, color

1cm³=1 mL

1cm³=1 mL

F=9/5 (C+32)

F=9/5 (C+32)

kelvin is 273K to 373K

kelvin is 273K to 373K

Celsius is O C to 100 C

Celsius is O C to 100 C

Fahrenheit is 32 F to 212 F

Fahrenheit is 32 F to 212 F

K = C + 273

K = C + 273.15

D = m/v

D = m/v

exact numbers

given by definition ex- there are 12 eggs in one dozen

nucleus

protons and neutrons

outside of the nucleus=electrons

1 atomic mass unit=1 amu = 1.66054 × 10^–24 g

1 amu = 1.66054 × 10–24 g

proton atomic mass

1.0073 amu

neutron atomic mass

1.0087 amu

electron atomic mass

5.486×10^-4 amu

elements arranged in order of

atomic number

AW=sumAi x AWi

AW=sumAi x AWi

molecular compounds

octet rule, valenceem

empirical formula

gives lowest whole # ratio of atoms of each element in compound AKA IT IS SIMPLIFIED

molecular compound

gives the exact # of atoms in each element in a compound; valence and octet

cations

monoatomic cations formed by metals

one e- lost, + charge

anions

monoatomic anions formed by non-metals

one e- gained, - charge

-ite

2

-ate

3

NH^4 +

ammonium ion

OH -

hydroxide ion

I -

iodide ion (IDE=for elemental elements)

K=C + 273

K=C + 273

1 in = 2.54 cm

1 in = 2.54 cm

5280 ft=1 mile

5280 ft=1 mile

12 in = 1 ft

12 = 1 ft

453.6g = 1 lb

453.6g = 1 lb

100 cm = 1 m (bc centi = 10^-2)

100 cm = 1 m

0.946 L = 1 quart

0.946 L = 1 quart

4 quarts = 1 gallon

4 quarts = 1 gallon

1mL = 1 cm³

1mL = 1 cm³

1 cm = 10^-2 m (centi 10^-2)

1 cm = 10^-2 m (centi 10^-2)

1 kg = 1000g (kilo=10³)

1 kg = 1000g (kilo=10³)

mono

1

di

2tri

tri

3

tetra

4

penta

5

hexa

6

hepta

7

octa

8

nona

9

deca

10

po4 3-

phosphate

CH3COO -

acetate

no3 -

nitrate

co3 2-

carbonate

CrO7 2-

dichromate

ClO3 -

chlorate

MnO4 -

permanganate

CrO4 2-

chromate

SO4 2-

sulfate

CrO4 2-

Chromate