Write a balanced chemical equation for the combustion of acetylene if the products are:
a) Carbon and water vapour
b) Carbon monoxide and water vapour
c) Carbon, carbon dioxide. Carbon monoxide and water vapour
d) The complete combustion of acetylene
What's your problem in doing this. The problem tells you the products they want.
a)
2C2H2 + O2 ==> 4C + 2H2O
b)
2C2H2 + 5O2 ==> 4CO2 + 2H2O
c and d are done the same way.
a) To write a balanced chemical equation for the combustion of acetylene to produce carbon and water vapor, you need to know the chemical formula of acetylene, which is C2H2.
The combustion process involves the reaction of acetylene (C2H2) with oxygen (O2) from the air. The balanced equation for this reaction would be:
2C2H2 + 5O2 → 4CO + 2H2O
In this equation, two molecules of acetylene react with five molecules of oxygen to produce four molecules of carbon monoxide and two molecules of water vapor.
b) If the products of the combustion of acetylene are carbon monoxide (CO) and water vapor (H2O), the balanced chemical equation would be:
2C2H2 + 3O2 → 4CO + 2H2O
In this case, two molecules of acetylene react with three molecules of oxygen to produce four molecules of carbon monoxide and two molecules of water vapor.
c) If the products of the combustion of acetylene are carbon (C), carbon dioxide (CO2), carbon monoxide (CO), and water vapor (H2O), the balanced chemical equation would be:
2C2H2 + 7O2 → 4C + 2CO2 + 2CO + 2H2O
In this case, two molecules of acetylene react with seven molecules of oxygen to produce four molecules of carbon, two molecules of carbon dioxide, two molecules of carbon monoxide, and two molecules of water vapor.
d) The complete combustion of acetylene refers to the reaction of acetylene (C2H2) with an excess amount of oxygen (O2) to produce carbon dioxide (CO2) and water vapor (H2O). The balanced chemical equation for this reaction would be:
2C2H2 + 5O2 → 4CO2 + 2H2O
In this equation, two molecules of acetylene react with five molecules of oxygen to produce four molecules of carbon dioxide and two molecules of water vapor.