Chapter 4 for test
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| pure substance that cannot be separated into simpler substances by physical or chemical means | element
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| a type of substance in which there is only one type of particle | pure substance
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| what is the name of a particle in an element? | atom
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| pure substance composed of two or more elements that are chemically combined | compound
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| what is the name of a particle in a compound? | molecule
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| when two or more atoms join, they form a --- | molucule
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| do the properties of a compound differ from the elements in it? | yes
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| what is applying electric current called? | electrolysis
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| what is the only way to break down a compound? | chemical change
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| what are some examples of compounds? | proteins, carbon dioxide, carbohydrates
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| a combonation of two or more substances that are not chemically combined? | mixture
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| do mixtures endure chemical changes? | no
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| process that separates based on the boiling points of the compounds | distillation
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| used to separate blood | centrifuge
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| mixture that appears to be a single substance | solution
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| substance dissolved in a solution | solute
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| substance in which the solution is dissolved | solvent
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| solid solution of metals or nonmetals | alloy
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| when 2 or more liquids form a solution, which is called the solvent? | the larger one
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| amount of solute dissolved in a solvent | concentration
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| solution with the same uniform and appearence throughout | homogeneous
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| solution that consists of visibly different substances | heterogeneous
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| the ability of the solute to dissolve in a solvent at a certain temperature | soluablity
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| misxture in which particles of a material are dispersed throughout a liquid | suspension
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| mixture in which the particles are dispersed throughout | colloid
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| what is the formula for concentration? | grams of solute/ mililiters of solvent
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| do gases become less soluable in liquids as the temperature is raised or as the pressure is raised? | the temperature
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| what are ways to dissolve solutes? | mixing, heating, or crushing
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