Which reaction best represents the complete combustion of ethane?

The chemical equation for the combustion of ethane is written below.

Explanation:

Combustion reaction is defined as the reaction in which a hydrocarbon reacts with oxygen gas to produce carbon dioxide gas and water molecule.

The chemical equation for the combustion of ethane follows:

By Stoichiometry of the reaction:

2 moles of ethane reacts with 7 moles of oxygen gas to produce 4 moles of carbon dioxide and 6 moles of water

Hence, the chemical equation for the combustion of ethane is written above.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

c. orbital shape i hope this is correct