chem finals

ionic compounds

electron theft

covalent compounds

electron sharing

v

valence

s

shell

e

electron

p

pair

r

repulsion

right of periodic table

non metals

middle of periodic table

numerals

left of periodic table

metals

have

h2

no

n2

fear

f2

of

o2

ice

i2

cold

cl2

beer

br2

mono

1

di

2

tri

3

tetra

4

penta

5

hexa

6

hepta

7

octa

8

nona

9

deca

10

Temperature

The average kinetic energy of particles in a substance

Pressure

the amount of force exerted per area of a surface

Solid

Matter with fixed volume and shape; particles vibrate

Liquid

Matter with fixed volume and changing shape; particles vibrate and roll

Gas

matter with changing volume and shape ; particles vibrate,roll and spread out

Triple point

The unique mixture of temperature and pressure witch solid liquid and gas phases can coexist

pure substance

A substance made of only one kind of matter and having definite properties.

compound

A substance that results from the combination of two or more elements in constant ratio

element

The simplest form of matter that has a unique set of properties

mixture

A combination of two or more substances without constant ratio

Homogeneous

A mixture in which the composition is uniform.

Heterogeneous

A mixture which the composition is not uniform

are elements compounds

no

what can be a molecule

elements and compounds

what makes a compound a compound

a molecule with more than 1 type of element

what problem does the mole solve

it helps count really small things ,count big numbers of things and it helps us predict amounts in a chemical reaction

NA in calculator

6.02 EE 23