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                                                                             10                   Chemical


                                                                             10 Reactions












                                                                                 A clear s olution of magnesium iodide reacts with a clear solution of silver
                                                                               nitrate, producing a  white precipitate of silver iodide. This is an example of
                                                                               one of the four types of chemical  reactions.


                                                              CORE CONCEPT

                                Chemical symbols, formulas, and equations can be used to concisely represent
                                       elements, compounds, and what happens in a chemical reaction.

                                                                      OUTLINE


                                                          10.1 Chemical Formulas
                         Chemical Formulas                   Molecular and Formula Weights
                         A chemical formula is a             Percent Composition of Compounds         Chemical Equations
                         shorthand way of describing the   10.2 Chemical Equations                    A chemical equation is a
                         elements or ions that make up a     Balancing Equations                      shorthand way of describing
                                                             Generalizing Equations
                         compound.                        10.3  Types of Chemical Reactions           what has happened before and
                                                             Combination Reactions                    after a chemical reaction.
                                                             Decomposition Reactions
                         Types of Chemical Reactions         Replacement Reactions
                         An oxidation-reduction reaction     Ion Exchange Reactions                   Types of Chemical Reactions
                         considers how electrons are      10.4  Information from Chemical Equations   Chemical reactions can be
                                                             Units of Measurement Used
                         transferred from one atom             with Equations                         classified according to what
                         to another; oxidation is the        Quantitative Uses of Equations           happens to reactants and
                         part where there is a loss of    Science and Society: The Catalytic Converter  products, which leads to four
                         electrons, and reduction is the   People Behind the Science: Emma Perry Carr  basic categories: combination,
                         part where there is a gain of                                                decomposition, replacement,
                         electrons.                                                                   and ion exchange reactions.


















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