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| A decomposition reaction is the opposite of a synthesis reaction. In a decomposition reaction a reactant compound is broken into two or more less complex substances. you are given a compound as the reactant. In most cases, to find the product you split the compound into the individual elements. The other types of decomposition reactions (decomposition of a hydrate, chlorate, carbonate, etc.) are covered in other tutorials. This tutorial focuses on the decomposition of a binary compound. The general pattern of a decomposition reaction is: AB --> A + B Look at the example below. Example #1: 2H2O(l) --> 2H2(g) + O2(g) Water decomposes (usually with the help of electricity) to form hydrogen gas and oxygen gas. Hydrogen and oxygen are written with subscripts of 2 because they are both diatomic molecules. |
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let’s go step by step. Predict the products when solid iron(II) oxide decomposes.
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