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Characteristics of Decomposition Reaction. One single reactant and two or more products; Requires energy; Examples of Decomposition Reaction. An example of a decomposition reaction is the breakdown of carbonic acid (H 2 CO 3) to carbon dioxide (CO 2) and water (H 2 O) [2]. H 2 CO 3 (aq.) → CO 2 (g) + H 2 O (l)
Worksheet #3: Decomposition Reactions In decomposition reactions, one compound will break down into two or more parts. 1. barium carbonate Æ 2. magnesium carbonate Æ 3. potassium carbonate Æ 4. zinc hydroxide Æ 5. Iron(II) hydroxide Æ 6. nickel(II) chlorate Æ 7. sodium chlorate Æ 8. potassium chlorate Æ 9.
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V. Decomposition Reactions A. Decomposition reactions have the form A → B + C 1. They can be recognized because they have only one reactant, which breaks down to produce two or more products. Figure 5.4 - Decomposition reaction B. Examples: 1. 2HgO(s) → 2Hg (l) + O 2 (g) a. This is the reaction that Joseph Priestley used to discover
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1 Identify decomposition reactions from a word equation or symbol equation. 2 Use the law of conservation of mass to balance simple decomposition reactions. Learning objective 1 is assessed via Q1, Q2b, Q3a, Q3b, Q4a, Q4b, Q5a–d.
A decomposition reaction is a reaction in which a compound breaks down into two or more simpler substances. The general form of a decomposition reaction is: AB → A + B AB → A + B. Most decomposition reactions require an input of energy in the form of heat, light, or electricity.
•In a decomposition one substance breaks down into two or more substances. Decomposition Reactions •Examples: –CaCO 3 (s) CaO (s) + CO 2 (g) –2 KClO 3 (s) 2 KCl (s) + O 2 (g) –2 NaN 3 (s) 2 Na (s) + 3 N 2 (g)
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Summary. • A decomposition reaction occurs when one reactant breaks down into two or more products. This can be represented by the general equation: AB ! A + B. • Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.
