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28 Cards in this Set
- Front
- Back
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units that make up all matter
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atoms
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element
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all atoms are alike, 90 (20 in labs)
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compound
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combines atoms of two or more elements, ratio always the same
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substance
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matter that can be an element or a compound, "pure"
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mixtures
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not same amounts, 5 types
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heterogeneous
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easily distinguished, separated
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homogenous
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uniformly
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solution
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homogenous, won't settle
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colloid
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heterogenous, never settles
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suspension
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heterogenous, settles
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solution2
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same composition, density, color, taste, homogenous
3 phases: solid, liquid, gas |
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solute
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being dissolved
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solvent
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dissolving
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alloys
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solutions made by melting the metal solute and solvent together
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dissolving
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occurs at surface, stir,temp,sufacearea
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gases
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affected by pressure, temperature(opposite of solids-decrease)
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water
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universal solvent, polar, constant motion
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like dissolves like
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why water can't dissove some substances
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soap
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polar (COOH) + nonpolar (?)
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vitamins
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polar(water soluble):b,c
nonpolar(fat soluble):a,d,e,k |
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solubility
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max amount of solute that can be dissolved in given amount of solvent at given T
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concentration vs. dilute
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lots of solute vs. lots of solvent
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electrolytes
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compounds that produce solutions of ions that conduct electricity in water, can be strong or weak
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ionization
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process of froming ions
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dissassociation
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ionic solid separates into positive and negative
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solute affects
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freexing point and boiling point
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water
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polar, hydrogen bond(stronger), crystalline ice
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Tyndall effect
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scatter light beam through solid
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