In 1995, Mario Molina, Paul Crutzen, and F. Sherwood Rowland shared the Nobel Prize in chemistry for their work on atmospheric chemistry. One reaction sequence they proposed for the role of chlorine in the decomposition of stratospheric ozone (we’ll see another sequence in Chapter 16) is
(1) CL(g) + O₃(g) → CLO(g) + O₂(g)
(2) CLO(g) + CLO(g) → CL₂O₂(g)
(3) CL₂O₂(g) → 2CL(g) + O₂(g)
Over the tropics, O atoms are more common in the stratosphere:
CLO(g) + O(g) → CL(g) + O₂(g)
(b) Write an overall equation combining reactions 1–3.

By placing all of the reactants on the left side of the equation and all of the products on the right side, you can integrate numerous reactions into a single equation.

Chemical species that are present on both sides of the equation will be eliminated without change if the overall equation is simplified.

What kind of combination reaction is this, specifically?

Ionic solids are created when a metal and a non-metal combine to form a reaction.

An illustration would be the reaction of lithium with sulfur to produce lithium sulfide.

Magnesium oxide is created when magnesium burns in air by combining the metal's atoms with the gas oxygen.

learn more about combining reactions here

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