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.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
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

ch 21

QuestionAnswer
Chemical reaction changed into new substances
Reactant substance that reacts
Product new substance that is formed
Chemical equation shorthand method
Coefficient represents the number of units of substance
Balanced chemical equation the same number of atoms of each element on both sides of the equation
Combustion reaction chemical reaction when a substance reacts with oxygen
Synthesis reaction two or more substances combine to form a different substance
Decomposition reaction chemical reaction which one substance breaks down into ( two or more substances)
Single-displacement reaction one element replaces another element in a compound
Double-displacement reaction when two ionic compounds in solution are combined
Precipitate double-displacement reaction
Oxidation loss of electrons
Reduction gain of electrons
Exergonic reaction chemical reaction that (releases) some form of energy such as light or heat
Exothermic reaction chemical reaction in which energy is (given off) in the form of heat
Endergonic reaction chemical reaction that requires energy (input) (heat, light, or electricity) in order to proceed
Endothermic reaction chemical reaction that requires heat energy in order to proceed
Catalyst speeds up a chemical reaction
Inhibitor slows down a chemical reaction
Created by: adajahhoran