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

CHE-125 Ch. 1

QuestionAnswer
Matter anything that has mass and occupies space
Scientific Method the systematic process of observation, hypothesis, and expierimentation used to expand and refine a body of knowledge.
Solid a substance with definte shape and volume
Liquid substance with definte volume but indefinte shape(assumes shape of its container)
Gas substance with niether definte volume or shape
States of Matter the physical state of a substance (solid/liquid/gas)
Change of State conversion of a substance from one state to another
Pure Substance uniform chemical composition throughout
Mixture a blend of two or more substances, each of which retains its chemcial idenity.
Element fundamental substance which that connot be broken down chemically into any simpler substance
Chemical Compound a pure substance that can be broken down into simpler substances by chemical reactiosn
Reactants A starting substance that undergoes a change during a chemical reaction
Product the substance formed as a reslt of a chemical reaction
Chemical Reaction A process in which the idenity and compisition of one or more substances are changed
Chemcial Formula A notation for a chemical compound using element symbols and subscripts to show how many atoms of each element are present
Metal A malleable element with a lustrous appearence that is a good conductor of heat and electricity. Solid @ room temp., Ductile.
The only metallic element that is liquid at room temp is? Mercury (Hg)
How many elements are on the periodic table? 117
Amount of elements that occur naturally? 90
Exanmples of Physical Change? Phase changes, dissolving sugar in water, breaing glass, nickel sticking to magnet.
Examples of Chemical Change? Milk Souring, Rusting, burning, exploding of nitroglycerin, ignition of matches.
Examples of Mixtures? Seawater, Mayonnaise, Rocks, Blood, Toothpaste, fog
Examples of Compounds? Water, Sugar, Sodium Chloride, Gaseous Ammonia, steam+water, Sodium Bicarbonate (Baking Soda)
Non-metals Many are exotic colored. Bad conducters. 11 are gases @ room temp, 5 are brittle solids, and Bromine is the only liquid nonmetal.
Metalloids Located along staircase (except Alumminum Al & Polonium Po). Solids, Dull, semi conductors.
Created by: kaelin.steele
 

 



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