lecture24%28chapt8%29 - Finish Chapter 8 Types of Chemical...

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1 Finish Chapter 8 Types of Chemical Reactions: • Combination Reactions – Metal + nonmetal salt – Metal OR nonmetal + O 2 ____ oxide – Metal oxide + water metal hydroxide – Metal oxide + water metal hydroxide • Decomposition Reactions • Replacement Reactions – Single or double
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2 Types of Chemical Reactions: • Decomposition Reactions • C 6 H 12 O 6 + 6O 2 CO 2 + 6H 2 O + energy Decomposition AB A + B A compound or substance separate into two or more substances which may or may not be different from each other, but the products are usually different from the original compound. • Reverse of Combination Reactions • Some examples of decomposition reactions are: 2 H 2 O(l) 2 H 2 + O 2 electrolysis of water 2 HgO(s) 2 Hg(l) + O 2 (g) generation of oxygen from heating HgO 2 KClO 3 (s) 2 KCl(s) + 3 O 2 (g) another way to produce oxygen CH 3 COOH CH 4 + CO 2
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3 Note however, the following reactions are often called ionization or dissociation reactions rather than decomposition reaction. The solvent participates in these reactions. • NaCl(s) + 6 H 2 O Na + (H 2 O) 6 + Cl - NH 4 Cl(s) NH 4 + (aq) + Cl - HNO 2 H + (aq) + NO 2 - (aq) Some decomposition reactions are Disproportion Reactions . For example,
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This note was uploaded on 01/26/2010 for the course CHEM 1311 taught by Professor Sussanthomas during the Spring '05 term at The University of Texas at San Antonio- San Antonio.

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lecture24%28chapt8%29 - Finish Chapter 8 Types of Chemical...

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