Advertisement Upgrade to remove ads

first semester sophmore year

chemistry

the study of the compositions structure and properties of matter and the changes it underscores

organic

study of most carbon containing compounds

inorganic

study of all substances not classified as organic mainly those compound that don't contain carbon

physical

study of the properties changes and relationships between energy and matter

Analytical

identification of the compounds and compostion of materials

biochemistry

study of substances and processes occurring in living things

theoretical

use of mathmatices and computers to design and predict the properties of new compounds

matter

anything that has mass and takes up space

mass

measure of the amount of matter

solid

has definite volume and shape

liquid

definite volume but an indefinite shape

gas

neither a definite volume or shape

mixtures

blend of two or more kinds of matter each of which retains its own identity and properties

pure substences

are either compound or elements

compounds

substences that is made from atomophere 2 or more elements

pure substance

made of only 1 kind of atom

periods

horizontal rows in the periodic table

group

vertical columns of the periodic table

Periodic trends

decrease in atomic radii across second period, incress in electrons higher charges nucleus

Periodic table

physical and chemical properties of the elements are periodic function of their atomic numbers

mental

element that is a good conducter of heat and electricity

non mental

element that is a poor conductor of heat and electricity

metalloids

some characteristics of mentals and nonmetals

quantum #

specify the properties of atomic orbitals and the properties of electrons in orbitals.

qualitative observatios

shows a quanity of a object

densitiy

the ratio of mass to volume or mass divided by volume

significant digits

a measurement consist of all the digits known with certainy plus one final digit

scientific notation

wrottem om tje fpr, <x 10n where M is number greater than or equal to 1 but less than 10 and n is a whole number. It shortens up the standered form

direct proportion

two quantities that give a constant value when one is divided by the other.

componets of a atom

?

Isotopes

atoms of the same element that have different masses

mass number

total number of protons and neutrons in the nucleus of an isotopes protons and newtrons equal mass number

mol-

amount a substance that contains as many particles as there are atoms. It help us convert elements

wave length

distance between coresponding points on adjacent waves.

Frequency

number of waves that pass a given point in a specific time, usually one second

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set