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

Science

chemistry

TermDefinition
Physical Change Any change that alters the form or appearance of a substance but doesn't change it into another substance.
Chemical Change A change in matter that produces one or more new substances.
Reactants Substances that undergo chemical changes.
Products New substance or substances that are formed.
Precipitate A solid that forms forms liquids during a chemical reaction.
Exothermic Reaction The energy released as the product form is greater than the energy required to break bonds of the reactants.( usually heat)
Endothermic Reaction More energy is required to break bonds of the reactants than is released by the formation of the products.
Chemical Equation A way to show a chemical reaction, by using symbols instead of words.
Law of Conservation Of Mass During a Chemical Reaction, matter is not created or destroyed.
Open System Matter can enter from or escape to the surroundings.
Closed System Matter doesn't leave or enter.
Coefficient A number placed in front of a chemical formula in an equation.
Synthesis When two or more elements or compounds combine to make a more complex substance.
Decoposition Reacts when compounds break down into simpler products.
Replacement If two elements in different compounds trade places.
Activation Energy The minimum amount of energy needed to start a chemical reaction.
Concentration The amount of a substance in a given volume.
Catalyst Increases the rate by lowering the activation energy needed.
Enzymes The cells in your body that contain thousands of biological catalysts.
Inhibitor A material that us used to decrease the rate of chemical reactions.
Created by: 15gibsonjae
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