Answer: The chemical reactions are given below.
Step-by-step explanation:
Combustion reaction is defined as the chemical reaction in which a hydrocarbon reacts with oxygen gas to produce carbon dioxide gas and water molecule.
![\text{hydrocarbon}+O_2\rightarrow CO_2+H_2O](https://img.qammunity.org/2020/formulas/chemistry/high-school/9j7rvgqpgy0k8j0r5dixkloadwib1ixmit.png)
If supply of oxygen gas is limited, it is known as incomplete combustion and carbon monoxide gas is also produced as a product.
- For a: An excess of oxygen
Here, complete combustion reaction takes place. The chemical equation follows:
![2C_(10)H_(22)+31O_2\rightarrow 20CO_2+22H_2O](https://img.qammunity.org/2020/formulas/chemistry/college/i1iem7q89qdtymmaaqhnsv89k58igm8zfm.png)
- For b: A slightly limited oxygen supply
Here, incomplete combustion takes place and carbon monoxide is also formed.
![C_(10)H_(22)+13O_2\rightarrow 5CO+5CO_2+11H_2O](https://img.qammunity.org/2020/formulas/chemistry/college/de649ospudbikd82y4x6gqzb91106ggbvi.png)
- For c: A very limited supply of oxygen
Here, incomplete combustion takes place and only carbon monoxide with water are formed as the products.
![2C_(10)H_(22)+21O_2\rightarrow 20CO+22H_2O](https://img.qammunity.org/2020/formulas/chemistry/college/1u7ja9svm8ecnh2x28nhun2nxpuhmu6e37.png)
- For d: The compound is burned in air
When a compound is burned in air, it means that unlimited supply of oxygen is there. So, complete combustion reaction takes place and carbon dioxide gas is formed as a product.
![2C_(10)H_(22)+31O_2\rightarrow 20CO+22H_2O](https://img.qammunity.org/2020/formulas/chemistry/college/obqgz06wvqnu4tr9ydyyf65cupcka807jr.png)
Hence, the chemical reactions are given below.