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Decomposition Reactions

Decomposition Reactions. Decomposition. One reactant decomposes into two or more products. AX  A + X. Decomposition Reaction. Decomposition is usually caused by heating or an electric current. water . mercury(II) oxide .

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Decomposition Reactions

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  1. Decomposition Reactions

  2. Decomposition • One reactant decomposes into two or more products. AX  A + X

  3. Decomposition Reaction

  4. Decomposition is usually caused by heating or an electric current. water 

  5. mercury(II) oxide 

  6. 1. Some metallic oxides, when heated, decompose into the component elements. Metallic oxide metal + oxygen MO  M + O2

  7. lead(II) oxide 

  8. 2. Some metallic carbonates, when heated, decompose into metallic oxides and carbon dioxide. metallic carbonate metallic oxide + carbon dioxide MCO3 MO + CO2

  9. lead(II) carbonate →

  10. 3. Some metallic chlorates, when heated, decompose into metallic chlorides and oxygen. metallic chlorate  metallic chloride + oxygen MClO3 MCl + O2

  11. potassium chlorate →

  12. 4. Metallic hydroxides, when heated, decompose to form metallic oxides and water. metallic hydroxide  metallic oxide + water MOH  MO + H2O

  13. potassium hydroxide →

  14. 5. Some compounds can be decomposed by the application of an electric current 2NaCl(s) 2Na(s) + Cl2(g)

  15. 6. Some oxyacids, when heated, decompose to form water and a nonmetallic oxide carbonic acid water + carbon dioxide

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