Save
Upgrade to remove ads
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

Stack #4660445

QuestionAnswer
What is a physical property change? Matter that can be observed without changing.
What are examples of physical property changes? Breaking glass, Mixing candies, Melting Ice
What is a chemical property? It determines if it will react or not.
What are some examples of a chemical property? Flammability, chemical bonding
What is an element? Elements stay exactly like they are and nothing can break them or melt them
Explain how the periodic table of elements are structured. It is arranged by the atomic number of protons.
What is a chemical reaction? when you take one or more materials and scramble their building blocks to create something new.
how do we know when a chemical reaction has occurred? Precipitation, New substances, temp, heat, energy
What is the law of conservation of mass? Mass or matter cannot be created or destroyed
What models do we use to represent the law of conservation of mass? a balance between reactants and products
What is a chemical equation? A written representation of a chemical reaction
what is a subscript? a small sized number on the bottom right of the symbol that tells you how many of each element you have
What is a coefficient? A number placed in front of a chemical symbol or formula it shows how many atoms or molecules of the substance are involved in the equation
How do you know when a chemical equation is balanced? When the same number of EACH type of atom on both sides of the arow
What is a endothermic reaction? Chemical reactions in which the reactants absorb heat energy from the surroundings to form products
Give 3 examples of an endothermic reaction. A chemical reaction that involves the release of energy in the form of heat or light
what is an exothermic reaction? a chemical change that releases energy usually in the form of heat
give 3 examples of exothermic reactions photosynthesis, baking bread,, cooking an egg
Created by: Scar bar
 

 



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