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

TermDefinition
Activation Energy What is needed to start a chemical reaction
Arrow you read the arrow as "yields" in a chemical equation or formula
Characteristics of a Chemical Reaction changes in energy or changes in properties (produce a gas(bubbles form), color change,precipitate forms or temperature.
Chemical Changes alter the chemical properties of matter; new substance with new properties are formed.
Chemical Equations a shorter, easier way to show chemical reactions by using symbols instead of words.
Coefficient a number placed in front of a chemical formula in a equation. Tells how many atoms or molecules of each reactant and product take part in the reaction.
Conservation of Mass the amount of matter involved in a chemical reaction does not change. The total mass of the reactants must equal the total mass of the products.
Decomposition Reaction a compound breaks down into simpler substances
Endothermic Reaction an observable change in energy that shows a chemical reaction took place; A reaction that takes heat from the solution, absorbs energy, makes it feel cooler
Exothermic Reaction an observable change in energy that shows a chemical reaction took place; a reaction that releases heat; gives off energy, makes it feel warmer; most chemical reactions are this type.
Physical Changes alter only the physical properties of matter; no new substances are formed. Can be changed in size, shape, color
Precipitate a solid that forms from solution during a chemical reaction; observable change that shows a chemical reaction took place.
Products the materials you have after a chemical reaction; written on the right side of the formula
Reactants the materials you have at the beginning of a chemical reaction; written on the left side of the formula
Replacements Reaction one part of a compound is displaced by an element or compound from another substance
States of Matter solid, liquid, gas
Subscript show the number of atoms of an element in a molecule or the ratio of elements in a compound.
Synthesis Reaction two substances combine to form a new compound
Created by: Shlynv
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