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

9th Physical Science

Chapter 19 Review

TermDefinition
Coefficient number in a chemical equation that represents the number of units of each substance taking part in a chemical reaction
Chemical equation shorthand method used to describe chemical reactions using chemical formulas and other symbols
Molar mass the mass in grams of one mole of a substance
Mole SI unit for quantity equal to 6.022 x 10-23 units of that substance
Products in a chemical reaction, the new substance or substances formed
Reactants in a chemical reaction, the substance that reacts
Precipitate insoluble compound that is formed in a solution during a double-displacement reaction
Oxidation the loss of electrons from the atoms of a substance in a chemical reaction
Reduction the gain of electrons by the atoms of a substance in a chemical reaction
Endergonic reaction chemical reaction that requires energy input in the form of light, thermal energy or electricity in order to proceed
Endothermic reaction chemical reaction that requires thermal energy in order to proceed
Exergonic reaction chemical reaction that releases some form of energy, such as light or thermal energy
Exothermic reaction chemical reaction in which energy is primarily given off in the form of thermal energy
Catalyst substance that speeds up a chemical reaction without being permanently changed
Collision model explains why certain factors affect reaction rates, states that particles must collide in order to react
Equilibrium state in which forward and reverse reactions or processes occur at equal rates
Inhibitor substance that slows down a chemical reaction or prevents it from occurring by combining with a reactant
Le Chatelier's principle states that if a stress is applied to a reaction at equilibrium, the reaction shifts in the direction opposite of the stress
Reaction rate the rate at which reactants change into products in a chemical reaction
Reversible reaction a reaction that can proceed in both the forward and the reverse directions
Created by: LeMay1
Popular Physical Science 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