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

Chemistry 3&4

TermDefinition
stoichiometry involves calculations based on chemical formulas and chemical equations
Law of conservation of mass is central to stoichiometry
atoms atoms are neither created nor destroyed in a chemical reaction. Atoms are simply rearranged to yield new substances
balancing chemical reactions formulas of reactants and products can't be changed
chemical equations balanced chemical reactions
physical state (g) gas (l) liquid (s) solid (aq) aqueous(water) solution
combustion reactions involve O2 as a reactant, typically form CO2 and H2O as products
relative atomic mass scale developed in a similar manner for all elements
O-16 atom mass 2.6560 * 10> -23 g
atomic mass unit (amu) the mass of one C-12 atom is assigned a value of 12 atomic mass units (amu), exactly
Avogadro's number 6.02*10>23
molar mass sum of the atomic mass of all atoms of the molecular formula of a molecular substance
percent composition of elements by mass divide the mass of each element in one mole of the compound by the molar mass of the compound, then multiply by 100 to get a percent
solution -homogeneous mixture of two or more substances - composed of a solvent with solutes dissolved
solvent substance that solutes are dissolved in
solute substances dissolved in the solvent to give a solution
solutes can be a gas, liquid, or solid
concentration amount of solute dissolved in a given quantity of solvent or solution
concentrate solution large amount of solute
dilute solution only a small amount of solute
quantitative description exact measurement of amount of the amount of solute in a given quantity of solvent or solution
 

 



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