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

Chemistry U1 Test

Review Guide for Unit 1.

What is Chemistry? The study of the composition, structure, & properites of matter.
What is a chemical? Any substance with a definite composition.
What is the Extensive Property? Property that depends on the amount of matter. (i.e. volume, mass, energy)
What is the Intensive Property? Property that does NOT depend on the amount of matter. (i.e. density, melting point, boiling point)
What are the two properties of matter? 1. has mass 2. takes up space
What is a Chemical Change? When one substance completely changes to a new substance.
What is a Chemical Property? A substances ABILITY to undergo changes to transform to a new substance.
What is a Physical Property? Anything you can OBSERVE without changing a substance.(5 senses)
What is a Physical Change? Substance that doesn't form a new substance with change.
What is a Pure Substance? Substance that can't be seperated by physical means. It is even throughout, has a fixed composition. (element or compound)
What is a Mixture? Blend of two or more types of matter that keep their own identity.
What are the two forms of a mixture? 1.) Homogenous- uniform/even throughout 2.) Heterogenous- different throughout
What is a period? Periods are horizontal on the periodic table.
What is a group? Also known as a family, they are vertical on the periodic table.
What are the characteristics of a metal, nonmetal, & metalloid? Metal- Malleable, Ductile, Solids, and shiny. Nonmetal- Not malleable, Not ductile, brittle. Metalloid- semi-conductors, not as malleable or ductile.
What are the SI Units for length, volume, time, & mass? Length- meters/km, cm, mm Volume- L, m^3, cm^3 Time- second Mass- g, kg
What is density? Density= mass/volume
Precision is scientific measurement? How close your numbers are to each other.
Accuracy in scientific measurement? How close you are too ACCEPTED value.
Created by: allisonnicole21



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