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

Science vocabulary

Exploring Creation w/ Chemistry - vocabulary (H - K)

TermDefinition
Heat Energy that is transferred as a consequence of temperature differences
Hess's Law Enthalpy is a sate function and is therefore independent of path.
Heterogeneous catalysts Catalysts that are in a different phase than the reactants
Homogeneous catalysts Catalysts that have the same phase as at least one of the reactants
Homogenous mixture A mixture with a composition that is always the same no matter what part of the sample you observe
Homonuclear diatomic A molecule composed of two identical atoms
Hypothesis An educated guess that attempts to explain observations
Ideal gas A gas whose molecules (or atoms) are very small compared to the total volume of the gas, make elastic collisions with one another an well as the walls of the container, and have no attraction to one another
Incomplete combustion A reaction in which O₂ is added to a compound containing carbon and hydrogen, producing either CO or C along with H₂O
Indicator A substance that turns one color in the presence of acids and another color in the presence of bases
Insoluble Unable to dissolve
Intermediate state A complex formed in the process of a chemical reaction when reactants and products are interacting
Ion An atom that has gained or lost electrons and thus become electrically charged
Ionic compound A compound formed by ions
Ionization potential The amount of energy needed in order to take an electron away from an atom
Isotopes Atoms with the same number of protons but a different number of neutrons
Isotopes enrichment The process by which the abundance of one isotope in a element is increased. It is typically used to make the fuel for nuclear bombs.
Joule The metric unit for energy
Kelvin The absolute temperature scale: it is not possible to reach or go below 0 Kelvin
Kinetic energy Energy that is in motion
Kinetic Theory of Matter The theory that the atom or molecules which make up a substance are in constant motion, the higher the temperature, the greater their speed
Created by: Autumn Fairall