Answer:
7mol of CO2
Explanation:
The balanced equation for the combustion of acetylene is
[tex]2C_{2} H_{2}+5O_{2}=4CO_{2}+2H_{2}O[/tex]
Using the equation coefficients, we can find out the number of moles of CO2 produced as follows.
[tex]\frac{3.5mol C_{2}H_{2}}{1} *\frac{4CO_2}{2 C_{2}H_{2}} =7molCO_{2}[/tex]
