CHEM 135 Chapter Notes - Chapter 1: Ampere, Scientific Law, Falsifiability

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Properties of matter are determined by the properties of molecules and atoms. Atoms: submicroscopic particles that constitute fundamental building blocks of ordinary matter. Molecules: atoms bound together in specific geometric arrangements. Carbon monoxide can take the place of the oxygen atom in hemoglobin(to which the iron atom binds)--less oxygen reaching body tissues. Just the right size and shape to fit into cavities within hemoglobin. Breathing too much carbon monoxide= unconsciousness, death, in smaller amounts, results in dizziness, headache, weakness, confusion. Presence of second oxygen in carbon dioxide prevents it from binding to oxygen site in hemoglobin. Details of how specific atoms bond to form a molecule, as well as the type of atoms in the molecule determine everything about the substance that the molecule composes. Chemistry: the science that seeks to understand the behavior of matter by studying the behavior of atoms and molecules. Knowledge is empirical (based on observation and experiment)