Question

Write a balanced combustion reaction for C2H2 (acetylene). How did you know which products should be formed? Explain your reasoning

Answer 1

2 C2H2 + 5 O2 -----> 4 CO2 + 2 H2O

Step-by-step explanation:

We know that the products formed for this reaction will be carbon dioxide and water simply because ethyne, (or acetylene), is a hydrocarbon.

All the different hydrocarbons, meaning any compound made up of only hydrogen and carbon, will produce only varying amounts of CO2 and H2O when they undergo combustion.

Combustion, of course, is when something is reacted with oxygen.

Answer 2

A. All organic compound undergo Combustion to produce CO2 and H20.

B. 2C2H2 + 5O2 —> 4CO2 + 2H20

Step-by-step explanation:

All organic compounds undergoes Combustion( burning in the presence of O2) to form CO2 and H20.

When C2H2 (acetylene) undergoes Combustion, CO2 and H20 are form as illustrated below:

C2H2 + O2 —> CO2 + H20

Now, let us balance the equation.

There are 2 atoms of C on the left side and 1atom on the right side. It can be balance by putting 2 in front of CO2 as illustrated below:

C2H2 + O2 —> 2CO2 + H20

Now, there are a total of 5 atoms of O on the right side and 2atoms on the left side. It can be balance by putting 5/2 on the left side as illustrated below:

C2H2 + 5/2O2 —> 2CO2 + H20

Now, multiply through by 2 to clear the fraction as illustrated below:

2C2H2 + 5O2 —> 4CO2 + 2H20

Now, we see clearly that the equation is balanced as we have equal numbers of atoms of the different elements present on both sides of the equation.