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The 5 Types of Reactions

The 5 Types of Reactions. We classify reactions into 5 categories so that we may more easily predict the products. Combustion. The 5 Types of Reactions. Decomposition. Double Replacement. Synthesis. Single Replacement. NEXT. Synthesis Reaction. DEMONSTRATION. DEFINITION.

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The 5 Types of Reactions

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  1. The 5 Types of Reactions We classify reactions into 5 categories so that we may more easily predict the products.

  2. Combustion The 5 Types of Reactions Decomposition Double Replacement Synthesis Single Replacement NEXT

  3. Synthesis Reaction DEMONSTRATION DEFINITION EXAMPLES MENU

  4. Synthesis Definition Synthesis reaction – 2 substances are combined to form a single product A + B  C +  MENU

  5. Synthesis Examples 2Mg + O2 2MgO Magnesium and oxygen combine to form magnesium oxide. 2H2 + O2  2H2O Hydrogen and oxygen combine to form dihydrogen monoxide (water) MENU

  6. Synthesis examples Magnesium and oxygen combining to form magnesium oxide. 2Mg + O2 2MgO Burning Magnesium metal. MENU

  7. Decomposition Reaction DEMONSTRATION DEFINITION EXAMPLES MENU

  8. Decomposition Definition Decomposition reaction – A single compound is broken down into 2 or more products. AB  A + B +  MENU

  9. Decomposition Examples 2NaCl(s)  2Na(s) + Cl2(g) Sodium chloride (table salt) decomposes into sodium and chlorine gas. CaCO3  CaO + CO2 Limestone (CaCO3 ) decomposes into lime (CaO) and carbon dioxide. MENU

  10. Decomposition example Water decomposing into hydrogen gas and oxygen gas. 2H2O  2H2 + O2 Decomposition of H2O2 MENU

  11. Combustion Reaction DEMONSTRATION DEFINITION EXAMPLES MENU

  12. Combustion Definition Combustion reaction – Hydrogen or a hydrocarbon (H and C) burn in oxygen to produce water and carbon dioxide. Heat is given off as energy. CxHx + O2 H2O + CO2 MENU

  13. Combustion Examples CH4 + 2O2  2H2O + CO2 Methane burns in oxygen to produce water and carbon dioxide. C12H22O11 + 12O2  11H2O + 12CO2 A sugar molecule burns in oxygen to produce water and carbon dioxide. MENU

  14. Combustion example The combustion of a hydrocarbon C(x)H(x) + O2 H2O + CO2 MENU

  15. Single Replacement Reaction DEMONSTRATION DEFINITION EXAMPLES MENU

  16. Single Replacement Definition Single Replacement reaction – A single element takes the place of an element in a compound. A + BC  B + AC + +  MENU

  17. Single Replacement Examples Mg + BeO  Be + MgO Magnesium replaces beryllium in beryllium oxide to form magnesium oxide and beryllium. 2Na + 2HCl  H2 + 2NaCl Sodium replaces hydrogen in hydrochloric acid to yield hydrogen and sodium chloride. MENU

  18. Single Replacement example A single replacement of magnesium metal for hydrogen in hydrochloric acid. Mg + 2HCl  H2 + MgCl2 This marble statue has been eroded by acid rain. MENU

  19. Double Replacement Reaction DEMONSTRATION DEFINITION EXAMPLES MENU

  20. Double Replacement Definition Double Replacement reaction – Elements in 2 compounds switch places to form 2 new compounds. AB + CD  AD + CB + +  MENU

  21. Double Replacement Examples MgO + BeS  MgS + BeO Oxygen and sulfur switch places to form magnesium sulfide and beryllium oxide. Na2S + Zn(NO3)2  2Na(NO3) + ZnS Sulfur and nitrate switch places to form sodium nitrate and zinc sulfide. MENU

  22. Double Replacement . A double replacement between barium chloride and potassium sulfate. BaCl2 + K2SO4 BaSO4 + 2KCl Double replacement reactions in a well tray. MENU

  23. Review Now that you have explored the 5 types of reactions, let’s put it all together and review! Procedure: • Look at the reaction • Ask yourself the questions 3. Answer the task sheet

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