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

Apologia Chem M 2A

Atoms and Molecules, up through Dalton

QuestionAnswer
continuous theory of matter theory that substances were composed of long, UNBROKEN BLOBS of matter
Democritus Greek philosopher, 460-370 BC, proposed the DIScontinuous theory of matter after walking along the beach
DIScontinuous theory of matter proposed that matter is composed of tiny individual particles
Antoine Lavoisier late 1700s, considered to be FOUNDER of chemistry, developed theory that led to development of the Law of Mass Conservation
law of mass conservation matter cannot be created or destroyed; it can ONLY change FORMS
qualitative measurements not exact amounts
quantitative measurements measurements that are made as PRECISELY as possible
decomposition the process by which a substance is BROKEN DOWN into its constituent parts
elements any substance that CANNOT be broken down into simpler components; a substance consisting of identical ATOMS
periodic table of elements a compilation of the most important information about each element, placed into an organized system
technetium first artificially created element, created in 1937
metals found to the left of the jagged line; are usually malleable, have luster, and are able to conduct electricity
nonmetals found to the right of the jagged line; typically brittle, lack luster, and do not conduct electricity
Even though hydrogen is left of the jagged line, it is always considered a nonmetal.
metalloids have some metallic properties and some nonmetal properties
compounds substances that can be decomposed into elements by CHEMICAL means; a substance consisting of identical MOLECULES
the law of definite proportions the proportion of elements in any compound is always the SAME
Created by: MrsHough
Popular Chemistry 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