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

chapter1

QuestionAnswer
matter Anything that has a mass and takes up space.
chemistry the study of the properties of matter and how matter changes.
substance A kind of matter that is pure and has a specific set of properties.
physical property A characteristic of a pure substance that can be observed without changing it into another substance.
chemical property A characteristic of a substance that describes its ability to change into different substances.
element A substance that cannot be broken down any other substances by chemical or physical means.
atom The basic particle from which all events are made, the smallest particle of and element that has the properties of that element.
chemical bond The force of attraction that holds two atoms together.
molecule A neutral group of two or more atoms held together by covalent bonds.
compound A substance made of two or more elements chemically combined in a specific ratio, or proportion.
chemical formula Symbols that show the elements in a compound and the ratio of atoms.
mixture Two or more substances that are generally together in the same place but their atoms are not chemically bonded.
weight A measure of the enforce of gravity acting on an object.
mass The amount of matter in an object.
international system of units A system of measurement based on multiples of ten and on established measures of mass, length, and time.
volume The amount of space matter occupies.
density The ratio of the mass a substance to its volume (mass divided by volume).
Physical change A change that alters the form or appearance of a material but does not make the material into another substance.
chemical change A change in which one or more substances combine or break apart to form new substances.
law of conservation mass The principal that the total amount of matter s neither created nor destroyed during any chemical or physical change.
tempature How hot or cold something is, a measure of the average energy of motion of the particles of a substance.
thermal energy The total energy of the motion of all the particles of an object.
endothermic change A change in which energy is absorbed.
exothermic change A change in which energy is released.
chemical energy. A form of energy that is stored in chemical bonds between atoms.
Created by: user-1994379
 

 



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