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Acids and Bases

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Across
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the dissolved substance in a solution
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a numerical scale used to indicate how acidic or basic a solution is
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very small particle that makes up all matter
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A mixture in which the sub- stances are not evenly mixed is a ______________ mixture.
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an electronic instrument with an electrode that is sensitive to the hydronium ions in a solution
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a compound that changes from one color to another within a particular pH range
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Roman emperor assassinated on the "Ides of March"
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a homogeneous mixture
Down
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matter that has the same composition and proper- ties throughout
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a combination of two or more substances that can be separated by physical means
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matter with a definite volume but no definite shape that can flow from one place to another
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A ____________ mixture is two or more substances that are evenly mixed on the atomic level, but the sub- stances are not bonded together.
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Substance that is used to dissolve the solute
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The combination of a water molecule and a hydrogen ion to create a positively charged particle
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A substance that releases a positively charged hydrogen ion, H
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a substance that produces hydroxide ions when dissolved in water