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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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- Fall '07