Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

CHEM: Matter Ch2

TermDefinition
matter anything that has mass and volume; it occupies space
atom the smallest unit of an element
compound a substance made of two or more different elements chemically combined at a specific ratio
molecule two or more atoms bonded together that act as a unit
element a substance composed of atoms with the same atomic number
solid phase of matter with definite shape and definite volume
liquid phase of matter with definite volume but no definite shape (takes shape of container)
gas phase of matter with no definite shape and no definite volume
STM Scanning Tunneling Microscope
pure substance a type of matter with the same composition and properties throughout; elements and compounds are pure substances
allotrope two or more different forms of the same element that have different formulas, structures, and properties
physical properties characteristics of a substance that can be observed and measured without changing the chemical composition of the substance
chemical properties characteristics of a substance based on its interaction with another substance
physical change change that does not affect the composition of a substance
chemical change changes the composition matter during a chemical reaction
mixture a physical (not chemical) combination of two or more substances
alloys a homogeneous mixture of a metal with another element (often another metal)
homogeneous mixture a mixture that is uniformly and evenly mixed
heterogeneous mixture a mixture that has different properties in different areas of the substance: not uniformly and not evenly mixed
distillation a method of separating the components of a liquid mixture that depends on different boiling points of the substances
filtration a method of separating the components of a mixture containing a solid and a liquid
Created by: MsRobinG
Popular Chemistry sets

 

 



Voices

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:
Retries:
restart all cards