CHE101_Lecture1 - 4 Reactants → Products V Section 1.4 An...

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9/6/07 – Chapter One: Matter and Life I. Chemistry is only part of the story. a. Why chemistry matters? b. Medicine<Biology<Chemistry<Physics<Math c. Chemistry is the “Central Science”: crucial to all other sciences d. Chapter One is a review of some basic chemistry vocabulary II. Section 1.1: Chemistry: The Central Science a. Chemistry: study of the nature, properties, and transformations of matter i. Matter: ii. Property: iii. Physical Change: iv. Chemical Change: III. Section 1.2: States of Matter a. Matter primarily comes in three States i. Solid: ii. Liquid: iii. Gas: b. Change of State: convert from one state of matter to another IV. Section 1.3: Classification of Matter a. When describing matter, one must know if it’s pure, or a mixture i. Pure Substance: ii. Mixture:
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b. Pure Substances have two groups i. Element: ii. Chemical Compound: 1. Chemical reaction: 2. Reactant: 3. Product:
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Unformatted text preview: 4. Reactants → Products V. Section 1.4: An Example of a Chemical Reaction a. Can use words or symbols, we usually use symbols b. Nickel + Hydrochloric Acid → Nickel (II) Chloride + Hydrogen c. Ni (s) + 2 HCl (aq) → NiCl 2 (aq) + H 2 (g) VI. Section 1.5: Chemical Elements and Symbols a. There are 114 chemical elements known b. Elements are abbreviated by one or two letters (1 st letter is capitalized) c. Chemical Formula: notation for a chemical compound using the element symbols and subscripts to show how many atoms of each atom are present VII. Section 1.6: Elements and the Periodic Table a. The symbols of the elements are tabulated in the periodic table i. Do NOT memorize ii. Will get one for each test that requires one b. The table is organized in several different ways that allow us to predict the behavior related compounds i. Metals ii. Nonmetals iii. Metalloids...
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CHE101_Lecture1 - 4 Reactants → Products V Section 1.4 An...

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