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substance formed by the chemical combination of two or more elements in definite proportions
van der Waals forces
a slight attraction that develops between the oppositely charged regions of nearby molecules
a material composed of two or more elements or compounds that are physically mixed together but not chemically combined
measurement system used to indicate the concentration of hydrogen ions in solution: ranges from 0-14
weak acids or bases that can react with strong acids or bases to prevent sharp sudden changes in pH
monomer of a nucleic acid made of a five-carbon sugar, a phosphate group, and a nitrogenous base
macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair, and to make enzymes
basic building block for protein compound with an amino group (−NH2) on one end and a carboxyl group (−COOH) on the other end
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