Determine the balanced equation for the reaction that occurs when ethylene glycol, C2H4(OH)2C2H4(OH)2, burns in air.

C₂H₄(OH)₂ + 2.5 O₂ ⇒ 2 CO₂ + 3 H₂O

Explanation:

Let's consider the reaction when ethylene glycol burns in air.

C₂H₄(OH)₂ + O₂ ⇒ CO₂ + H₂O

This is a complete combustion reaction in which ethylene glycol reacts with oxygen to form carbon dioxide and water.

First, we will balance the hydrogen atoms.

C₂H₄(OH)₂ + O₂ ⇒ CO₂ + 3 H₂O

Then, we will balance the carbon atoms.

C₂H₄(OH)₂ + O₂ ⇒ 2 CO₂ + 3 H₂O

Finally, we will balance the oxygen atoms.

C₂H₄(OH)₂ + 2.5 O₂ ⇒ 2 CO₂ + 3 H₂O

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.

the answer is d.) potassium