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Questions 6.4.1(b)

  1. Just like in the gas burners, fresh air (rich in oxygen) flows by convection from the base of the burner upwards. Charcoal at the bottom therefore receives the most oxygen and burns to form product P. Name P. Write equation for the burning of charcoal at this point.

  2. Roughly mid-way up, there is hot charcoal but little oxygen; so P shares its oxygen with the hot carbon to form product Q. What is Q? Write a balanced equation for the reaction.

  3. The flame at the top is blue. Explain this, and write an equation to represent the reaction.




Answers to Questions 6.4.1(b)

  1. P is carbon (IV) oxide. C(s)   +   O2(g)   ⟶   CO2(g)

  2. C(s)   +   CO2(g)   ⟶   2CO(g)

  3. 2CO(g)   +   O2(g)   ⟶   2CO2(g)