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25 Cards in this Set
- Front
- Back
Atom
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Smallest unit of matter that cannot be broken down by chemical means
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Element
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Substance made up of only one kind of Atom
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Compound
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Substance made up made up of joined atoms or two different elements
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Molecule
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A group of atoms held together by covalent bonds
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Ion
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An atom or molecule that has gained or lost an electron
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Cohesion
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Attraction between substances of the same kind
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Adhesion
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Attraction between different substances
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Solution
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A mixture in which one or more substances are evenly distributed in another substance
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Acid
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Compounds that form Hydrogen when they are dissolved in water
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Base
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Compounds that reduce the concentration of hydrogen ions when dissolved un water
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Carbohydrate
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Organis compounds made of Carbon, Hydrogen, and oxygen atoms in the proportion 1:2:1
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Monosaccharide
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Single sugars which are the bulding blocks of Carbohydrates
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Lipid
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Nonpolar molecules that are not soluble in water
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Protein
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A chain of molecules called amino acids
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Amino Acid
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Building blocks of Protein
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Nucleic Acid
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Long chains of smaller molecules called Nuceotides
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Nucleotide
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Has 3 parts: a sugar, a base, and a phosphate group, which contains phosphorus and oxgen atoms
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DNA
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Deoxyribonucleic acid
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RNA
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ribonucleic acid
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ATP
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Adenosine triphosphate
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Energy
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The ability to move or change matter
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Activation energy
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The energy needed to start a chemical reaction
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Enzyme
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Substances that increase the speed of chemical reactions
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Substrate
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A substance on which an enzyme acts during a chemical reaction
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Active Site
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Deep folds on an enzyme
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