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Biology Lessons 2.1 and 2.2 Vocabulary

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Across
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One end is postitive, the other is negative
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Attraction between molecules of different substances
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Attaction between molecules of the same substance
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Measure of a substances acidity or alkalinity
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7.5 - 14 on pH scale
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0 - 6.5 on pH scale
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Water mixed with non-dissolved materials
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What something is being dissolved in
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Mixture where all components are evenly distributed
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A pure substance with only one type of atom
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Two or more elements chemically combined
Down
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What is being dissolved in a mixture
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Postively or negatively charged atoms
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Bond where one or more electrons is transferred from one atom to another
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Smallest unit of most compounds
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Bonds found in water molecules
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Where the protons and neutrons reside
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Negatively charged particle that orbits the nucleus
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2 or more elements or compounds physically (not chemically) combined
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Bond where electrons are shared between atoms
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Postitively charged part of an atom
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The building blocks of matter