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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

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.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

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

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

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