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states of matter
| Question | Answer |
|---|---|
| What 2 things are caused by surface tension? | the circular drops of water a the meniscus |
| How does a change of state effect the identity of a substance? | the identity does not change |
| how does a change of state effect the energy of the substance? | it either adds or loses energy |
| how does a change of state effect the temp of the substance? | temp doesn't change suring a change of state |
| what happens at the same temp as freezing? | melting |
| Does everything freeze at 0c? Can something freeze at a warmer or colder temp? | no not evertything freezes at 0c like dry ice |
| Are chnages of state chemical or physical? | Physical |
| What can effect the temp that water boils at and why? | air pressure because it can be either higher or lower. |
| why can the volume of a gas change? | because its atoms are spread apart and there is space between them. |
| how are evaporation and boiling different? | evaporation can happen at any temp but boiling can't |
| does ice water change temp while the ice is melting? | no because there is no temp change during changes of state |
| dpes boiling water change temp after is you let it boil for a long time why? | No because it changes to steam |
| Solids | matter with a definite shape and volume. particles vibrate in place amorphous has no order crystalline does |
| Liquid | has definite shape but not volume |
| surface tension | force acting on a liquids particles causing them to form drops |
| viscosity | a liquids resistance to flow low means it moves fast high means it moves slow |
| gas | has no definite volume or shape |
| pressure | the amount of force exerted on a given area. the number of collisions of the particles inside the container. |
| Boyle's Law | gases volume increases as pressure decreases |
| Charles Law | gases volume increases as temp increases |
| plasma | no definite shape or volume particles have broken apart (lightning and fire) |
| temperature | the measure of energy of a substance |
| melting | change of state from a solid to a liquid (popsicle to popsicle juice) endothermic |
| freezing | change of state from a liquid to a solid exothermic change water to ice |
| vaporization | liquid to a gas |
| condensation | change of state from a gas to a liquid cold water drops of water on glass exothermic |
| sublimation | change of state from a solid directly to a gas dry ice |
| characteristic property | a property used to identify something |
| endothermic | when energy is added to a substance |
| states of matter | solid, liquid, gas, and plasma |
| evaporization | vaporization on the surface of a liquid below its boiling point |
Created by:
bigmac23
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