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

Phases of Matter

vocab 5

TermDefinition
Solid A form of matter that has a definite shape and volume. Particles are packed closely together.
Liquid A form of matter that has an indefinite shape, flows, yet has a fixed volume. Particles are close together.
Gas A form of matter that takes both the shape and volume of its container. Particles are far apart.
Volume The measure of space occupied by the object. Can change when there's a difference between internal and external pressure
Non Polar Covalent Bond When the atoms in the bond pull equally (as occurs when identical atoms are bonded), the bonding electrons are shared equally. Equal distribution of electrons between two atoms, no difference in electronegativity.
Polar Covalent Bond A covalent bond between atoms in which electrons are shared unequally. Unequal distribution of electrons between two atoms, there is a difference in electronegativity.
Non Polar Covalent Molecule Symmetrical in shape, all polar covalent bonds cancel out.
Polar Covalent Molecule Non symmetrical in shape, polar covalent bonds do not all cancel out.
Dispersion Forces The weakest of all molecular interactions are caused by the motion of electrons. They occur even between nonpolar molecules.
Dipole Interactions Occurs when polar molecules are attracted to one another. The slightly negative region of polar molecule is weakly attracted to the slightly positve region of another polar molecule.
Hydrogen Bonds An attraction between the hydrogen atom on one molecule to either F, O, or N on another molecule.
Colanent Network Solids Covalent molecules where the atoms are bonded in very rigid and structured arrangements. These are non- conducive, but are hard and have very high melting and boiling points. Happens in graphite and diamond (both carbon), and silicon dioxide (sand)
Standard Temperature and Pressure A temperature of 0 C and a pressure of 101.3 kPa or 1 atmosphere (atm). Can be found on table A.
Absolute Zero The temperature at which the motion of particles theoretically cease.
Allotrope Two or more different molecules form the same element in the same physical state. Carbon (coal, graphite, diamond) and oxygen (O2 and ozone O3).
Melting When a substance changes from a solid to a liquid, opposite of freezing.
Freezing When a substance changes from a liquid to a solid, opposite of melting.
Evaporation When a substance changes from a liquid into a gas, the opposite of condensing, also known as vaporization or boiling.
Condensation When a substance changes from a gas into a liquid, opposite of evaporation
Sublimation When a substance changes from a solid directly into gas with no liquid being formed at all, opposite of deposition.
Deposition When a substance changes from a gas directly into a solid with no liquid being formed at all, opposite of sublimation.
Boiling Point When a liquid is heated to temperature at which particles throughout the liquid have enough kinetic energy to vaporize , the liquid begins to bubble. Bubbles of vapor form throughout the liquid, rise to the surface, and escape into the air. The boiling po
Melting Point The temperature at which a solid changes into a liquid
Gas Pressure Results from the force exerted by gas per unit surface area of an object.
Temperature The Kelvin temperature of a substance is directly proportinal to the average kinetic energy of the particles of the substances.
Diffusion The tendency of molecules to move toward areas of lower concentration until the concentration is uniform throughout.
Effusion A gas escapes through a tiny hole in its container.
Real and Ideal Gases Real gases differ most from ideal gas at low temperature and high pressure
Surface tension The inward force, or pull, tends to minimize the surface area of a liquid.
Created by: abbeebrandow
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