Worksheet #6: Combustion Reactions We will focus on the combustion of hydrocarbons. Hydrocarbons react with oxygen to form carbon dioxide and water. 1. methane (CH4) 2. ethane (C2H6) 3. propane (C3H8) 4. butane (C4H10) 5. pentane (C5H12) 6. hexane (C6H14) 7. ethene (C2H4) + 8. ethyne (C2H2) + 9. benzene (C6H6) + oxygen + Æ oxygen + Æ oxygen + oxygen + + Æ oxygen Æ oxygen oxygen + Æ oxygen oxygen Æ Æ Æ Æ Worksheet #6: Combustion Reactions We will focus on the combustion of hydrocarbons. Hydrocarbons react with oxygen to form carbon dioxide and water. 1. methane (CH4) + oxygen CH4 2. ethane (C2H6) + + propane (C3H8) + butane (C4H10) + + pentane (C5H12) + 6. 7. hexane (C6H14) ethene (C2H4) + + ethyne (C2H2) + + oxygen Æ benzene (C6H6) + + oxygen oxygen 2C6H6 + water 4CO2 + 6H2O + water + 4H2O + water + 10H2O carbon dioxide + water 5CO2 + 6H2O carbon dioxide 19O2 Æ + 12CO2 water + 14H2O carbon dioxide + water 2CO2 + 2H2O 3O2 Æ + + 8CO2 Æ Æ Æ 2C6H14 2C2H2 9. 8O2 oxygen C2H4 8. Æ + 2H2O carbon dioxide 13O2 water + 3CO2 Æ Æ oxygen + carbon dioxide Æ + C5H12 Æ 5O2 oxygen 2C4H10 5. 7O2 + CO2 Æ carbon dioxide Æ oxygen C3H8 4. 2O2 oxygen 2C2H6 3. carbon dioxide Æ Æ carbon dioxide + water 4CO2 + 2H2O 5O2 Æ 15O2 Æ carbon dioxide Æ 12CO2 + + water 6H2O