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Chapter 2 Vocab

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Across
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Chemical reaction that absorbs more energy than it releases.
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A measurement of the amount of hydrogen ions in a solution.
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The attraction of a molecule to a different substance.
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Molecules composed of carbon, hydrogen and oxygen in a 1:2:1 ratio.
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A mixture of substances that is the same throughout.
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The amount of energy needed to be absorbed for a reaction to start.
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A substance that decreases the activation energy, needed to start a chemical reaction.
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The substance in a solution that is present in the greater amount.
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A compound that remove hydrogen ions in water.
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Substances that change during a chemical reaction
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A chemical reaction that releases more energy than it absorbs.
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Molecules that contain carbon, hydrogen, oxygen, nitrogen and sometimes sulfur
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Nonpolar molecules that contain fats, oils, and cholesterol
Down
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A state when both reactants and products are made at the same rate.
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The amount of energy that will break a bond between atoms.
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Substances made by the chemical reaction
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Catalyst for chemical reactions in living things.
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Polymer made of nucleotides that contain sugar, a phosphate group and nitrogen molecular base.
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A polymer made of amino acids
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The substance in a solution that is present in a lesser amount.
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The attraction of a molecule to itself.
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A specific reactant that an enzyme works on.
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Chain of carbon atoms bonded to hydrogen atoms
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A single molecule or one molecule that is part of a polymer
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A compound that releases hydrogen ions in water.