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

Mixes in Phys. Sci.

About the mixes that are used in chemistry.

What elements are always with their "twin"? Hydrogen, oxygen, fluorine, bromine, iodine, nitrogen, chlorine.
What makes something a substance? Matter that a chemical formula can be written for.
What makes something a mixture? It can be in any proportion and the parts are not chemically bonded.
Is alcohol a substance or mixture? Substance
What is homogeneous? An item that has all particles equally distributed.
What is heterogeneous An item that has particles unevenly distributed.
Is pain homogeneous or heterogeneous? Heterogeneous
What has large particles and settles out on standing? Suspension
What has medium particles, doesn't settle out on standing, and scatters in light? Colloids
What has no particles and doesn't settle out on standing? Solutions
What is a physical change? A change of how something looks that you can always change back to the original state.
What is a chemical change? A change of something that you can't change back to the original state.
What is an example of a physical property? Color, density, solubility, taste, melting point, hardness, boiling point, luster, odor, dissolves, slices in half, etc.
What is an example of a chemical property? Flammability, reacts with acid to form hydrogen, reacts wit water to form a gas, reacts with a base to form water, can neutralize a base, decomposes, rusts, producing carbon dioxide gas, souring, rots etc.
Created by: Carolina_Girl



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