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

chapter 15

Substance element or compound that cannot be broken down into simpler components and maintain the properties of the original substance.
Element substance with atoms that are all alike
compound substance formed from two or more elements in which the exact combination and proportion of elements is always the same.
heterogeneous mixture mixture, such as mixed nuts or a dry soup mix, in which different materials are unevenly distributed and are easily identified.
homogeneous mixture solid, liquid, or gas that contains two or more substances blended evenly throughout.
solution homogeneous mixture that remains constantly and uniformly mixed and has particles that are so small they cannot be seen with a microscope.
colloid heterogeneous mixture whose particles never settle.
Tyndall effect scattering of a light beam as it passes through a colloid.
suspension heterogeneous mixture containing a liquid in which visible particles settle.
physical property any characteristic of material, such as size or shape, that you can observe or attempt to observe without changing the identity of the material.
physical change any change in size, shape, or state of matter in which the identity of the substance remains the same.
distillation process than can separate two substance in a mixture by evaporating a liquid and recondensing its vapor.
chemical property any characteristic of substance, such as flammability, that indicates whether it can undergo a certain chemical change.
chemical change change of one substance into a new substance.
law of conservation of mass states that the mass of all substance present before a chemical change equals the mass of all the substance remaining after the change.
Created by: homerogonzalez