Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
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 - test 1

QuestionAnswer
Two Broad Catagories of Matter Pure Substances and Mixtures
Pure Substances are: a single element or a single compound
A mixture is: -Two or more substances that are physically mixed, not chemically combined -Two or more substances in different proportions
Homogeneous Mixture a solution = uniform distribution of the components (solvents and solutes) throughout the mixture.
Heterogeneous Mixture non-uniform or variable distribution of components throughout the mixture.
extensive property property that depends on the amount of matter (ie. mass)
intensive property property that does not depend on the amount of matter (ie. density, temperature)
theory unifying principle that explains a body of experimental observations
law concise, verbal or mathematical statement of a reliable relationship between phenomena
Accuracy how close a measurement is to the true value of the property being measured.
Precision repeatability of the measurement
Dalton's atomic theory - Matter is composed of atoms. - All atoms of a given element are identical to one another - Atoms of two or more different elements combine in simple ratios to form compounds. - A chemical reaction involves changes in the arrangements of atoms.
Created by: 1423555193
 

 



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