Chlorine is heated with oxygen to form dichlorine monoxide gas. Express your answer as a chemical equation. Identify all of the phases in your answer.

4 moles of hydrogen chloride (note that it is in the gaseous phase, otherwise it would be hydrochloric acid) react with 1 mole of oxygen gas to form 2 moles of chlorine gas and 2 moles of liquid water.

To conform with the law of conservation of mass, the equation must be balanced, this means that there must be the same number of each type of atom on both sides of the arrow.

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CintiaSalazar CintiaSalazar · Answer 2 · 2021-11-12T14:52:51+01:00

The balanced chemical reaction is:

4 HCl (g) + O₂ (g) → 2 Cl₂ (g) + 2 H₂O (l)

In first place, chlorine is heated with oxygen to form dichlorine monoxide gas. Then, this can be expressed as:

HCl (g) + O₂ (g) → Cl₂ (g) + H₂O (l)

On the other side, the Law of Conservation of Matter is also called the law of conservation of mass or the Law of Lomonósov-Lavoisier. This law postulates that "The mass is not created or destroyed, only transformed."

Then, the number of atoms that are present in the reagents has to be equal to the number of atoms present in the products.

Finally, the balanced chemical reaction is:

4 HCl (g) + O₂ (g) → 2 Cl₂ (g) + 2 H₂O (l)

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