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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

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.

Remove ads
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



Minimum amount of energy needed to start a chemical reaction. Activation energy
Attraction that holds oppositely-charged ions close together. Ionic Bond
Pure substance that contains two or more elements. Compound
Combination of chemical symbols and numbers that indicates which elements and how many atoms of each element are present in a molecule. Chemical formula
Substance that speeds up a chemical reaction but is not changed itself. Catalyst
Chemical bond formed when atoms share electrons. Covalent Bond
Substance that forms as a result of a chemical reaction. Product
Chemical reaction in which heat energy is released. Exothermic Reaction
Neutral particle formed when atoms share electrons. Molecule
Measure of how fast a chemical reaction occurs. Rate of Reaction
Process that produces chemical change, resulting in new substances that have properties different from those of the original substances. Chemical reaction
Atom that is no longer neutral because it has gained or lost an electron. Ion
Chemical symbol for an element, surrounded by as many dots as there are electrons in its outer energy level. Electron dot diagram
Bond resulting from the unequal sharing of electrons. Polar Bond
Substance that exists before a chemical reaction begins. Reactant
Substance that slows down a chemical reaction, making the formation of a certain amount of product take longer. Inhibitor
Force that holds two atoms together. Chemical bond
Shorthand form of writing what reactants are used and what products are formed in a chemical reaction. Chemical Equation
Region surrounding the nucleus of an atom, where electrons are most likely to be found. Electron Cloud
Chemical reaction in which heat energy is absorbed. Endothermic Reaction
Created by: bwise