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44 Cards in this Set
- Front
- Back
Particle Theory of Matter
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-All matter is made of particles called atoms
-Atoms are always in motion -Different substances are made up of different combinations of atoms -Atoms cannot be created or destroyed, only changed from one form to another |
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Mass
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is the amount of matter in a object
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Law of Conservation of Matter
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Atoms/Matter cannot be created or destroyed only changed from one form to another
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Density
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amount of atoms/ given amount of volume
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Viscosity
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is a fluids internal resistance or friction that keeps it from flowing. As the temperature increases in a liquid, the viscosity decreases.
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Melting
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when a solid for example water changes it form due to the change in temperature.
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Boiling
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it is the process when a substance reaches it boiling point thus a liquid turns into a gas.
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Solid
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has a definate shape
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Liquid
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does not have a definite shape, it takes the shape of their container.
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Condensation
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gas to liquid
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Solidification
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gas to solid
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Evaportaion
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liquid to a gas
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Matter
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is anything that has mass and takes up space
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Energy
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a supply or source of electrical, mechanical, or other form of power (If something isn't matter, it is energy).
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Physical change
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A physical change is reversible,For example, the freezing of water would be a physical change because it can be reversed
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Chemical change
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A chemical change irreversible,whereas the burning of wood is a chemical change - you can't 'unburn' it
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Pure substance
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is a made up of one kind of matter and has a unique characteristic or properties (example baking soda).
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Mixture
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is made up of a combination of different substances and each substance keeps it properties (which may be hard to identify).
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Homogeneous mixture
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is a mixture in which the different substances cannot be seen; a mixture that looks like all one substance.
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Heterogeneous mixture
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another name for mechanical mixture
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Mechanical mixture
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you can see the different substances that make up the mixture (example soil and mixed vegetables).
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Suspension
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: is a cloudy like mixture in droplets or a tiny pieces of a substance are held within another substance and if left undisturbed, its parts will usually separate out. Muddy water is an example of suspension.
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Colloid
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is also a cloudy like mixture in droplets or tiny pieces so small they do not separate easily (example: homogenized milk, Cool Whip, mayonnaise).
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Element
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are any of the four primary substances, earth, air, fire, and water, that were formerly thought to be the materials from which all matter is constructed.
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Compound
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something made by combining two or more things.
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Chromatography
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is a test used to determine if they are pure substances or solutions. Also it is the technique to discovering chemical components.
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Evaporation
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liquid to a gas
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Atom
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All matter is made of atoms no matter if the matter is biotic, dead or abiotic.
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Unsaturated solutions
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a solution in which more solute can dissolve.
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Saturated solution
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a solution in which no more solute can dissolve at a given temperature.
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Solubility
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the maxium amount of solute you can add to a fixed volume of solvent at a given temperature (this happens at a stauration point).
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Aqueous
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means dissolved in water
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Solute
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the substance being dissolved
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Solvent
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the substance doing the dissolving (usually water).
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Tyndall effect
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is the scattering of light by a colloidal particles or particles in suspension. (Named after John Tyndall).
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A fluid
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a substance that continually flows under shear stress. All liquids and all gases are fluids under the right circumstances.
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Archimedes Princple
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The strength of the buoyant force acting upward on a partially or fully submerged object is equal to the weight of the liquid displaced by that object.
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Buoyancy
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a term that describes how liquids exert and equal and opposite force on gravity, that pushes upward.
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Density
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amount of atoms/ given amount of volume
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Miscibility
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how well a fluid can dissolve other substances
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Compressibility
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how much a fluid will compress
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Compression
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something that squishes and absorbs force
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Pressure
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is a meaures of the force acting perendicular to a unit area.
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Weight
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your gravitational pull towards the earth
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