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saveliy_v [14]
2 years ago
14

In Ontario, some electricity comes from coal-burning generators. Coal is a natural form of carbon that has a large amount of sul

phur mixed in with it. Answer the following questions based on the burning of coal to produce energy.
a) Write the word equations and balanced chemical equations for the burning of carbon and the burning of sulphur. (4 marks)
b) Which of these products is harmful to the environment? How is it harmful? (2 marks)
c) Write the word equation and balanced chemical equation for the reaction that produces this harmful environmental effect. (2 marks)
d)Explain why it is important to make sure your furnace is tuned up and in proper working order before the winter
Chemistry
1 answer:
irinina [24]2 years ago
4 0

Answer:

a)

C(s)+O_{2}(g) \rightarrow CO_{2}(g)

S(s)+O_{2}(g) \rightarrow SO_{2}(g)

b)

Sulphurdioxide

c)

SO_{2}(g) + H_{2}O(l) \rightarrow H_{2}SO_{3}(l)

SO_{2}(g) + \frac{1}{2}O_{2} \rightarrow SO_{3}(g)

d)  

Incomplete combustion produce harmful gases.

Explanation:

a)

Carbon reacts with atmospheric oxygen to form carbondioxide as well as sulphur dioxide.

The chemical equations are as follows.

C(s)+O_{2}(g) \rightarrow CO_{2}(g)

S(s)+O_{2}(g) \rightarrow SO_{2}(g)

b)

Sulfur dioxide is very harmful to the environment to cause acid rains.

This harmful gas mix with rain water to form  sulphuric acid.

c)

The balanced chemical equation for the reaction that produces harmful environmental effects is as follows.

SO_{2}(g) + H_{2}O(l) \rightarrow H_{2}SO_{3}(l)

SO_{2}(g) + \frac{1}{2}O_{2} \rightarrow SO_{3}(g)

SO_{3}(g) +H_{2}O(l) \rightarrow H_{2}SO_{4}(l)

d)

In the absence of proper amount of oxygen required for combustion, incomplete combustion will take place which will result in formation of more carbondioxide an other harmful gases.

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Pentane is a hydrocarbon. There are five carbon atoms in each of its molecule. Its molecular formula will be C₅H₁₂.

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? C₅H₁₂ + ? O₂ → ? CO₂ + ? H₂O

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<em>1</em> C₅H₁₂ + ? O₂ → ? CO₂ + ? H₂O

  • C₅H₁₂ is the only <em>reactant</em> that contains C atoms. There are 5 C atoms in a C₅H₁₂ molecule. There should be the same number of C atoms in the products.
  • CO₂ is the only <em>product</em> that contains C atoms. There are one C atom in each CO₂ molecule. 5 C atoms correspond to 5 CO₂ molecules.

<em>1 </em>C₅H₁₂ + ? O₂ → <em>5</em> CO₂ + ? H₂O

  • Similarly, C₅H₁₂ is the only <em>reactant</em> that contains H atoms. H₂O is the only <em>product</em> that contains H atoms. There are 12 H atoms in one C₅H₁₂ molecule, which corresponds to 6 H₂O molecules.

<em>1</em> C₅H₁₂ + ? O₂ → <em>5</em> CO₂ + <em>6</em> H₂O

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<em>1</em> C₅H₁₂ + <em>8</em> O₂ → <em>5</em> CO₂ + <em>6</em> H₂O

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<h3>Reference</h3>

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