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SECTION 1
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Indications of a Chemical Reaction
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1. Release of heat and light
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2. Production of a gas
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3. Formation of precipitate
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4. Color change
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Characteristics of Chemical Equations
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Word and Formula Equations
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CH4(g) + O2(g) → CO2(g) + H2O(g)
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Balancing a Chemical Equation
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Guidelines for Balancing Equations
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H2O(l) → H2(g) + O2(g)
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DO NOT!.....
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DO!!!!.....
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Reactant side Product side
H 4 4
O 2 2
Sample Problem
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Adjust the coefficients
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Practice Problem 1
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Practice Problem 2
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Practice Problem 3
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Practice Problem 4
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Practice Problem 5
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Practice Problem 6
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Practice Problem 7
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SECTION 2
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1. Synthesis Reactions
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Reactions of Elements with Oxygen and Sulfur
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2Mg(s) + O2(g) → 2MgO(s)
Group 2 Elements
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Reactions with Sulfur
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Nonmetals
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Reactions of Metals & Halogens
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Group 2 Metals & Halogens
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Synthesis Reactions with Oxides
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Oxyacids
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Practice Problems
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2. Decomposition Reactions
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Decomposition of Binary Compounds
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electricity
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Decomposition of Metal Carbonates
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Decomposition of Metal Hydroxides
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Decomposition of Metal Chlorates
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Decomposition of Acids
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Practice Problems
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3. Single-Replacement Reactions
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Replacement of a Metal in a Compound by Another Metal
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Replacement of Hydrogen in Water by Metal
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Replacement of Hydrogen in Acid by Metal
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Replacement of Halogens
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Practice Problems
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4. Double-Replacement Reactions
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Formation of a Precipitate
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Formation of a Gas
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Formation of Water
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5. Combustion Reactions
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Practice Problems
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Practice Problem
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