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30 Cards in this Set
- Front
- Back
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solid
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shape-definite
volume-definite compressible-no |
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liquid
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shape-fills bottom of container
volume-definite compressible-no |
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gas
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shape-fills entire container
volume-fills volume of container compressible-very |
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vapor
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gas that naturally occurs in liquid state
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matter
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anything that occupies space and has mass
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mass
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the quantity of matter
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weight
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changes as you move away from earth
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sublimation
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solid --> gas, skips liquid stage
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matter classified into 2 groups
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pure substances & mixtures
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pure substances classified into 3 groups
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compounds, elements, atoms
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mixtures classified into 2 categories
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heterogeneous & homogeneous
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heterogeneous classified into 2 categories
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suspension & colloid
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homogeneous
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"solution"
looks same throughout and cannot see individual componenets ex. saltwater |
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suspension
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large particles
settle or filter out ex. coffee grounds |
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colloid
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small particles
do not settle out ex. milk borderline heterogeneous/homogeneous |
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solution
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very small particles
ex. salt water |
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mixtures
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physical combo of 2 or more substances
retain individual properties of components. ex. sand water = sand+water can be separated by physical means |
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aqueous solutions
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contain water
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tyndall effect
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can see light beam if there are large particles.
a solution will never show light |
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heterogeneous
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looks different throughout, layer, or you can see individual components
ex. sand water |
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compound
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2 or more elements
chemicall bonded fixed proportions ex. H2O |
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elements
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made up of only 1 type of atom.
ex. H or H2 |
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atom
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smallest particle
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pure substances
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uniform, definite composition
can NOT be separated by physical means Tyndall effect does not show |
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chromatography
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dye molecules separated using a solvent on paper
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filtration
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trapping large particles in a piece of paper
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settling
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allowing impurities to simply fall out due to gravity
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distillation
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separation of a mixture based on boiling points
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law of definite proportions
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same proportions by mass
mass of element/mass of compound x 100 |
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law of multiple proportions
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the same elements can combine in different ways
same elements:diff ratios H2O vs H2O2 |
