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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.

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

Chem 3.1 Notes

Chemical Reaction The transformation of a substance or substances into one or more new substances is known as a Chemical Reaction
Law of conservation of mass mass is neither created nor destroyed during ordinary chemical reactions or physical changes
Regardless of where or how a pure chemical compound is prepared, ______________. It is composed of a fixed proportion of elements
Law of definite proportions The fact that a chemical compound contains the same elements in exactly the same proportions by mass regardless of the size of the sample or source of the compound is known as the law of definite proportions.
Law of multiple proportions If two or more different compounds are composed of same elements, then ratio of the mass of the second element combined with a certain mass of the first element is always a ratio of small whole numbers
John Dalton An English school teacher who proposed explanations of the three aformentioned laws
Dalton's Theory
Created by: 1531900713