Sergey Bylikin, Gary Horner and, Brian Murphy Solutions for Chapter: Energetics and Thermochemistry, Exercise 3: Quick question

Write equation to describe the standard enthalpy change of combustion for octane, ${\mathrm{C}}_8{\mathrm{H}}_{18}$.

Write equation to describe the standard enthalpy change of combustion for chloroethane, ${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{Cl}$.

Write an equation to describe the standard enthalpy change of combustion for cyclohexanol, ${\mathrm{C}}_6{\mathrm{H}}_{12}\mathrm{O}$.

Write equation to describe the standard enthalpy change of combustion for methanoic acid, ${\mathrm{CH}}_2{\mathrm{O}}_2$.

Write equation to describe the standard enthalpy change of combustion for glucose, ${\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6$.