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.
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

Chapter 15 Vocab

Substance simply a substance is a type of matter with a fixed composition.
Element all atoms in a substance have the same identity that substance is.
Compound substance in which the atoms of two or more elements are combined in a fixed composition.
heterogeneous mixture A mixture in which different materials can be distinguished easily.
Homogeneous mixture Solid,liquid,or gas that contains two or more substances blended evenly throughout.
Solution A homogeneous mixture of particles so small that they cannot be seen with a microscope and will never settle to the bottom of their container.
Colloid a type of mixture with particles that are larger than those in solutions but not heavy enough to settle out.
Tyndall effect Scattering of light by colloidal particles
Suspension a heterogeneous mixture containing a liquid in which visible particles settle.
Physical Property any characteristic of a material, such as size or shape, that you can observe or attempt to observe without changing the identity of the material.
Physical change A change in size, shape, or state of matter
Distillation the process for separating substances in a mixture by evaporating a liquid and re condensing its vapor
Chemical property a characteristic of a substance that indicates whether it can undergo a certain chemical change.
Chemical change A change of substance to another
Law of conservation of mass the mass of all substances that are present before a chemical change equals the mass of all the substances that remain after the change.
Created by: isaacarenas27