Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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
Know
remaining cards
Save
0:01
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:
Retries:
restart all cards




share
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

ThermoChem Intro

cava chem 303 4.01 Intro to Thermochemistry

QuestionAnswer
Swedish chemist Alfred Nobel invented [...] in 1866 and became very rich. He left provisions in his Will to use his fortune to establish the Nobel Prizes after his death. Swedish chemist Alfred Nobel invented dynamite in 1866 and became very rich. He left provisions in his Will to use his fortune to establish the Nobel Prizes after his death.
When chemical bonds break, energy is [...]. When chemical bonds break, energy is absorbed.
Energy must be [...] to break bonds. Energy must be absorbed to break bonds.
When chemical bonds form, energy is [...]. When chemical bonds form, energy is released.
In a chemical reaction, some bonds may be broken while others are [...]. In a chemical reaction, some bonds may be broken while others are formed.
Exothermic reactions [...] energy. Exothermic reactions release energy.
Endothermic reactions [...] energy. Endothermic reactions absorb energy.
Combustion reactions [...] energy. Combustion reactions release energy.
A solid must [...] energy to melt. A solid must absorb energy to melt.
Dissolving a [...] is usually an endothermic, but sometimes an exothermic reaction. Dissolving a salt is usually an endothermic, but sometimes an exothermic reaction.
For any chemical reaction, the [...] energy before and after the reaction remains the same. For any chemical reaction, the total energy before and after the reaction remains the same.
Created by: mr.shapard