chemistry 4/11/14 Word Scramble
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Question | Answer |
Attraction between molecules? | Intermolecular forces |
Do intermolecular forces influence whether a substance is solid, liquid, or gas? | yes. |
When the partially positive pole of one molecule attracts the negative pole of another molecule is called?? | Dipole-Dipole forces |
Bonds that occur when hydrogen is bonded with: F,O, and N.??? | Hydrogen bonds |
A temporary uneven balance that allows that area to be temporarily changed.? | Dispersion(London)forces |
What are the bonds in order of strongest to weakest? | ionic,metallic,dipole,dispersion. |
Give me a description of solids? | Vibrating particles, not fluids,resist compression. |
The only solid denser than liquid is? | ice!!!!!! |
Particles that occur in a regular,repeating pattern? | Crystalline solid |
Particles that have no pattern? | Amorphous solid |
Temperature that a substance changes form a solid to a liquid. | Melting point |
Melting? | Solid to liquid....common sense!!!!! |
Freezing? | Liquid to solid. if you didn't know that just press the x in the right corner now... :((( |
Produces a rise in temperature that can be sensed? | Sensible heat |
Heat that produces a phase change by breaking bonds? | Latent heat ( no temp change) |
Direct change from solid to gas? | Sublimation ex. dry ice. |
Direct change from gas to solid? | Deposition |
A repeating 3d pattern of positive and negative ions in a crystal. | Crystal Lattice |
The simplest unit of repetition in a crystal lattice, the building block of the crystal?? | Unit Cell |
A substance that forms more than one crystal form is called?? | Polymorph |
One of 2 or more forms of a polymorphic element that exist in the same physical state. | Allotrope ex. sulfur,arsenic,phosphorus. |
Weak bonds =?? | Low melting point |
Energy released when gas changes to a crystal? | Lattice energy |
Atoms of a noble gas that form soft solids at very low temps?? | Atomic crystals |
Weak forces that hold covalent bonds together? | Covalent molecular crystals |
Non-mettalic elements covalently bonded into a large network of atoms.?? | Covalent network crystal |
Ions that form a repeating network? | Ionic crystals |
Metal ions? | Metal ions surrounded by mobile electrons. |
Can liquids be compressed? | No |
Liquids are much denser than gases? | yes. |
Attraction between particles of liquid is called? | cohesion |
Attraction between a liquid and other materials? | adhesion |
Elastic skin on the surface of a liquid? | surface tension |
A substance that reduces surface tension? | a surfactent |
The thickness of a liquid is called? | viscosity |
A curved upper surface of a column of liquid? | Meniscus |
The movement of a liquid up a narrow tube is called? | Capillary action |
Liquid changing to a gas is called? | Vaporization! |
gas changing to a liquid is called? | condensation! |
vaporization below the boiling point? | vaporization |
pressure exerted by the evaporation molecules? | Vapor pressure |
When evaporation occurs at the same rate as condensation. | Dynamic equalibrium |
rapid vaporization caused by application of heat is called? | Boiling |
Temp at which a liquid boils? | boiling point. |
Using vaporization and condensation to seperate a mixture of liquids is called? | distillation. |
What shows when a substance is solid, liquid or gas at different temperatures ad pressures? | Phase diagram |
The temperature and pressure where a substance can be a solid, liquid or gas? | The triple point |
What is the triple point of water? | 0.01 C |
the highest temp at which pressure will liquefy as a gas? | The critical temperature |
The pressure needed to liquefy a gas at its critical temperature!?? | Critical pressure |
The science of the super cold is called? | Cryogenics |
If your'e a lovely lading reading this without a banquet date... | Don't worry I'm available (unless your name is not Kierstin) haha |
Temperature at which vapor pressure equals 760 torr ?? | Normal boiling point |
Strong cohesion =?? | more viscosity! |
Created by:
Kyle Witt
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