Lec06 Chemical Reactions - TYPES OF CHEMICAL REACTIONS 1....

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LMLaput Chemistry 16 Lecture 6 TYPES OF CHEMICAL REACTIONS 1. COMBINATION REACTIONS •Combination reactions occur when two or more substances combine to form a compound. •There are three basic types of combination reactions. 1. Two elements react to form a new compound 2. An element and a compound react to form one new compound 3. Two compounds react to form one compound Types: 1. Element + Element Compound A. Metal + Non-metal Binary Ionic Compound 2 K (S) + Cl 2(g) 2KCl (s) B. Non-metal + Non-metal Binary Covalent Compound 2 P (s) + 3 Cl 2(g) 2 PCl 3 in limited chlorine 2 P (s) + 5 Cl 2(g) 2 PCl 5(s) in excess chlorine 2. Compound + Element Compound AsCl3 (s ) + Cl 2(g) AsCl 5(s) SF 4(s) + F 2(g) SF 6(g) 3. Compound + Compound Compound NH 3(g) + HCl (g) NH 4 Cl (s) NO + NO 2 N 2 O 3 2. DECOMPOSITION REACTIONS •Decomposition reactions occur when one compound decomposes to form: 1. Two elements 2. One or more elements and one or more compounds 3. Two or more compounds Types: 1. Compound Element + Element 2. Compound → Compound + Element 3. Compound → Compound + Compound 3. DISPLACEMENT REACTIONS •Displacement reactions occur when one element displaces another element from a compound.
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Lec06 Chemical Reactions - TYPES OF CHEMICAL REACTIONS 1....

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