Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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
edit
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

Unit 5: Composition

Chemical Composition

TermDefinition
Formula Element symbols and subscripts used to represent the chemical composition of a substance
polyatomic ion a tightly bound group of atoms that behaves as a unit and has a positive or negative charge
Empirical formula smallest ratio of the atoms of each element in a compound
Molecular Formula actual number of atoms of each element in a molecule
Coefficient number placed before a formula indicating the number of units of that substance
percent composition Percent of each element in a compound
percent error the percent that a measured value differs from the accepted value
hydrate compound that has water chemically attached between its ions and written into its chemical formula
gram atomic mass The mass in grams of 1 mole of atoms for an element
gram formula mass (GFM) the mass of one mole of a substance (Found by adding up all elements contained within a compound/element using the periodic table)
A mole 6.02 x 10²³ particles of a substance
Created by: LMerritt
Popular Chemistry sets

 

 



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