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synthesis reactions - Josh Huver Mr Billings H Chem 5 June...


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Josh Huver Mr. Billings H. Chem. 5 June, 2006 Synthesis reactions occur when two or more simple substances, either elements or compounds, are combined to form only one new and more complex substance. The general form of a synthesis reaction is element or compound + element or compound à compound. Some examples of synthesis reactions in action would are: Metal + oxygen à metal oxide : 2Mg + O2 à 2MgO Metal oxide + water à base : MgO + H2O à Mg(OH)2 Nonmetallic Oxide + water à acid : CO2 + H2O à H2CO3 Decomposition Reactions occurs when energy in the form of light, heat, electricity or mechanical shock is supplied. A compound may decompose to form simpler compounds and/or elements. The general form of a decomposition reaction is Compound à two or more substances. There are six general types of decomposition reactions. Some oxy-acids, when heated, decompose to form water and the nonmetal oxide. Some metallic carbonates, when heated, decompose to form the metal oxide and carbon dioxide.
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