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Atom
Basic Unit of Matter
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Isotope
Atoms of the same element that have a different number of neutrons
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Compound
substance formed by the chemical combination of two or more elements in definite proportions
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Ionic Bond
one or more electrons transferred from one atom to another
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Ion
atom that loses an electron and becomes positive, or gains an electron and becomes negative
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Covalent Bond
electrons that are shared between atoms
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Cohesion
attractions between molecules of the same substance
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Solute
dissovled in a solution
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Solvent
substance that dissolves solutes
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Acid
solution contianing mostly hydrogen (H+)
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Base
compound that produces hydroxide ions in a solution (OH-)
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Monomer
small units in compounds that form to make polymers
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Polymers
large molecules that are made from monomers by polymerization
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Carbohydrate
compounds made of carbon, hydrogen, and oxyen
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Monosaccharide
Single sugar molecule
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Polysaccharide
large macromolecules formed from monosaccharides
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Lipid
fats that are not saluable in water
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Nucleic acid
macromolecuels containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
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Nucleotides
monomers that have 3 parts- 5 carbon sugar, a phosphate group, and a nitrogenous base
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Proteins
macromolecules that contain nitrogen, carbon, hydrogen, and oxygen. Polymers of amino acids
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Catalyst
increase the rate in a chemical reaction without undergoing change
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