Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how



Chemistry the study of substances and the changes they undergo
central science overlaps all other sci
energy the capacity to do work
work the capacity to move an obj. over a distance against a resisting force
forms of energy kinetic, radiant, and potential
KE energy of motion
mechanical energy KE
thermal energy KE
random internal motion of particles KE
radiant energy from sun
potential stored energy
energy possessed by object because of position or arrangement of particles PE
measurement of energy calorie or joule
1 cal = 4.184 J
law of conserv. of energy in any process, energy is neither created nor destroyed
fossil fuels coal and petroleum and natural gas
measurement of temp. celcius and farenheit
kelvin scale SI unit of temp. (K)
c=k-? 273
absolute zero point at which the motion of particles of matter ceases
matter anything that has mass and volume
states of matter solid liquid gas plasma
chemical changes alter the identity of a substance
physical changes alter looks but not identity
type of change where new substance is created with new properties chemical change
sodium Na
Copper Cu
Lead Pb
Tungsten W
Iron Fe
Tin Sn
Potassium K
gold Au
Mercury Hg
SIlver Ag
------- can not be separated by physical or chemical means element
elements are abbreviated with symbols and letters
elements are organized on the periodic table
compound two or more elements chemically combined
pure substances elements and compounds- because they have a unique set of chemical and physical properties
specific heat capacity formula H= mc (delta) t
gasoline in car is ex. of ? energy potential
mixture substances that have come together but are not chemically combined
homogeneous undistinguishable
heterogeneous distinguishable
ways of seperation evaporation, crystallization, distilling, filtering, chromotog., centrifuge
heterogeneous mix. often seperated by filtration
seperating sand and water can be done by filtration
separating sugar from sugar water by crystallization
separation that takes advantage of boiling points is distillation
removing chlorophyll form leaves by chromo.
decompose water into h and o by electrolysis
crude oil into gas distillation
magnesium + oxygen magnesium oxide
iron + sulfur iron II sulfide
Created by: 778758220



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards