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

chemical reactions

science

TermDefinition
chemistry is the study of properties
element is a substance that cannot be broken down into any other substance by chemical or physical means
compound is a substance made of two or more elements
mixture made from two or more pure substances
solution a well mixed mixture
physical change a change that alter the form of appearance of a material
chemical change a change in matter that produces a new substance
precipitate a solid that forms during a chemical reaction
atom the smallest particle of an element
molecule the combination of two or more atoms
chemical bond the force that holds atoms together
chemical equation is a shorter easier way to show chemical reactions
subscript shows the number of atoms of an element in a molecule
reactants the material you have at the beginning of a chemical reaction
symbol one or two letter symbol
coefficient a number in front of a chemical formula in the equation
synthesis when two or more substances combine to make a more complex substance
decomposition a reaction that breaks down compounds into simpler products
exothermic reaction a reaction that releases energy in the form of heat
endothermic reaction a reaction that absorbs energy
activation energy is the minimum amount of energy that has to be added to a start a reaction
concentration is the amount of one material in a given volume of another material
catalyst a material that increases the rate of a reaction by lowering the activation energy
enzymes provide a surface on which reactions take place
inhibitor a material used to decrease the rate of a reaction
fuel a material that releases energy when it burns
Created by: dirtnasty
Popular Chemistry sets
Review
Review
PT and counting atoms
Chapter 3 terms
Review
"5th Grade - Mixtures & Solutions - Terms & Definitions"
Structure of Atoms
Element Symbols
13 Polyatomic ions to memorize
Element Symbols
Ejercicos para ayudar a memorizar símbolos de principales elementos químicos
Periodic Table

 

 



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