Chapter 1 Reading Notes - Chapter 1 Outline General...

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Chapter 1 Outline – General Chemistry 8 th  Edition An Introduction to Chemistry o Modern Chemistry: A Brief Glimpse Chemistry : the science of the composition and structure of materials and of the  changes  that materials undergo All forms of life appear to share many of the same molecules and molecular  species ( DNA ) o Experiment and Explanation Experiment : an observation of natural phenomena carried out in a controlled   manner Results can be duplicated Rational conclusions can be/are obtained Law : a concise statement or mathematical equation about a fundamental  relationship or regularity of nature Hypothesis : a tentative  explanation of some regularity of nature Theory : a tested  explanation of basic natural phenomena The Scientific Method The general  process of advancing scientific knowledge through  observation The framing of laws, hypotheses, or theories The conducting of more experiments o Law of Conservation of Mass Mass : the quantity of matter in a material Matter : whatever occupies space and can be perceived by our senses Law of Conservation of Mass : the total mass remains constant  during a chemical  change Antoine Lavoisier (1743-1794) Heated mercury to react with oxygen (mercury II oxide) to determine the  conservation of mass o Matter: Physical State and Chemical Constitution
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