۷. $\text{Ni(NO}_{3})_{2} + \text{C}_{4} ext{H}_{8} ext{N}_{2} ext{O}_{2} \rightarrow \text{Ni(C}_{4} ext{H}_{7} ext{N}_{2} ext{O}_{2})_{2} + \text{HNO}_{3}$

۸. $\text{C}_{8} ext{H}_{18} + \text{O}_{2} \rightarrow \text{CO}_{2} + \text{H}_{2} ext{O}$

۹. $\text{C}_{4} ext{H}_{10} + \text{O}_{2} \rightarrow \text{CO}_{2} + \text{H}_{2} ext{O}$

۱۰. $\text{C}_{2} ext{H}_{6} ext{O} + \text{O}_{2} \rightarrow \text{CO}_{2} + \text{H}_{2} ext{O}$

۱۱. $\text{C}_{3} ext{H}_{8} ext{O}_{3} + \text{O}_{2} \rightarrow \text{CO}_{2} + \text{H}_{2} ext{O}$

۱۲. $\text{Al}_{2} ext{(SO}_{4})_{3} + \text{Ca(OH)}_{2} \rightarrow \text{Al(OH)}_{3} + \text{CaSO}_{4}$