[cavalieregi]

Could someone please provide me with the incomplete combustion formula for heptane.

[Vidya]

Incomplete combustion of heptane will have the same products as that of incomplete combustion of any alkane.Incomplete combustion means combustion in less amount of oxygen.Now think of the products formed by incomplete combustion of ethane or butane

[Archer]

Could someone please provide me with the incomplete combustion formula for heptane.

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 http://www.chemicalforums.com/index.php?topic=65859.0

[cavalieregi]

For Example:
Complete Combustion of Hexane is: 2(C₆H₁₄) + 19O₂  12CO₂ + 14H₂O + Energy
Incomplete Combustion of Hexane is: C₆H₁₄ + 5O₂  CO₂ + CO + 4C + 7H₂O

[Borek]

Incomplete Combustion of Hexane is: C₆H₁₄ + 5O₂  CO₂ + CO + 4C + 7H₂O

And why not

2C₆H₁₄ + 13O₂  12CO + 14H₂O

or

2C₆H₁₄ + 7O₂  12C + 14H₂O

or any linear combination of these equations?

Your question is ill defined and as such has no unambiguous answer.