CHEM 135 Chapter Notes - Chapter 1-3: Kelvin, Chemical Equation, Atomic Mass
2 Oct 2018
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Properties of molecules and atoms determine the properties of matter. Atoms = subatomic particles; building blocks of matter. Molecules = arrangements of atoms bound together. Carbon monoxide (co) molecules fit into hemoglobin cavities that usually carry oxygen. Co diminishes oxygen carrying capacity of blood. C) death, dizziness, weakness, confusion, headache. Co2 = emitted by cars, only diff. Btwn co and co2 is # of oxygen; cant bond to hemoglobin so its not toxic when breathed. Water and hydrogen peroxide are closely related. H2o = stable drinkable liquid vs h2o2 unstable, burns skin, rocket fuel. Big idea: slight differences in molecules can impact properties greatly. Chemistry: the science that seeks to understand the behavior of matter by studying the behavior of atoms and molecules. Scientific knowledge is based on observation and experiment. Hypothesis: a tentative interpretation or explanation of observations. Good = falsibiable (predictions are confirmable and refuted by more observations)
