Chemistry Test Rev. Word Scramble
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Question | Answer |
Define Matter | Something that takes up space |
What is the difference between intrinsic and extrinsic properties? | Intrinsic = The property will not change depending on how much of an object you have(density/temperature). Extrinsic = will change depending on how much of the object you have (mass, volume). |
Define density | How much mass there is for the volume of an object. |
Difference Between: A) Elements and Compounds B) Ionic and Covalent Compounds | A) An element is one pure substance, whereas a compound is a combination of a couple of elements. B)Ionic Bond: Bond between two ions of opposite charge Covalent Bond: Chemical bond created when two atoms share electrons |
Difference Between: A) Compounds and Mixtures B) Heterogeneous and Homogeneous Mixtures | A) Compounds are combined chemically, whereas mixtures are combined physically B)In Homogeneous Mixtures you can't tell what all of the components are, whereas in a Heterogeneous Mixtures, you can. |
List 4 ways you can separate solids from liquids. | - Filtration - Evaporation - Centrifugation - Crystallization |
List 2 ways you can seperate two solids. | - Filtration - Dissolution |
How do you seperate liquids? | Distillation |
Describe the differences in the three states of matter. | Solids: Strong bonds, atoms only vibrate a little and don't move around much Liquids: Weaker bonds than solids, have a little bit of space to move around in. Gases: Very weak bonds, they move around freely in their container |
Differentiate kinetic energy from potential energy. | Kinetic energy is when something is moving, potential energy is when something has the potential to move, but isn't yet. |
Describe the kinetic molecular theory. | - All matter is made of atoms - Particles move all the time - Heavier particles move slower than lighter ones |
Describe Melting/Freezing | The temperature has hit the melting/freezing point, and now the bonds of the solid are weakened/strengthened, to form a liquid/solid. |
Describe Boiling | The liquid has hit its boiling point, and now, like at its melting point, the bonds are weakened further, to create a gas. |
Describe Condensation | A gas hits a cold surface, which quickly changes the particles into liquid particles. |
Another word for temperature? | Average Kinetic Energy |
What happens to particles during sublimation? | In sublimation, particles rapidly spread out. |
How much is 0 degrees Celcius in Kelvin? | 273 Kelvin |
How is the volume of a gas affected by the temperature of the gas? | By heating/cooling a gas, the particles gain/lose energy. Therefore they hit more/less frequently against their container causing an increase/decrease in volume. |
State Charles' Law. | When the temperature of a gas is increased, the volume will increase as well. |
State Boyle's Law. | When the pressure of a gas is increased, the volume will decrease. |
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Whitelemur
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