Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
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
remaining cards
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:
restart all cards
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 Part 2


Activation Energy what is needed to start a chemical reaction
Arrow also known as yields in a chemical equation or formula
Characteristics of a Chemical Reaction changes in energy or changes in properties
Chemical Changes alter the chemical properties of matter;new substances 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 from 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.
Concentration amount of one material in a given amount of another material
tgemperature higher heat causes faster reactions
Surface Area increased surface area = increased reaction
Catalysts materials that increases the rate of reaction
Enzymes biological catalysts
Inhibitors decreases the rate of a reaction
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 and 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 a change in size, shape, or color; change in phase
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
Replacement Reaction one part of a compound is displaced by an element or compound from another substance
States of Matter solid, liquid, gas
Subscripts show the number of atoms of and element in a molecule or the ratio of elements in a compound
Synthesis Reaction two substances combine to form a new compound
Created by: 150007803