Which are examples of reversible reactions? check all that apply. iodine and chlorine can react to form iodine chloride. at equilibrium, the system contains a mixture of iodine, chlorine, and iodine chloride. sodium hydroxide and hydrochloric acid react readily to form sodium chloride and water. the reverse reaction does not occur. hydrogen and nitrogen react to form ammonia. at low pressure, the equilibrium system contains all three substances.

These first and the last are examples of reversible reactions:

Explanation:

The reactions that end in a quasi complete conversion of the reactants into the products are said that are not reversible reactions.

Most of the chemical reactions do not reach a complete conversion. They seem to stop without getting complete conversion. The reason is that these reactions are reversible. A reversible reaction is that that can be forward (direct reaction) and backward (inverse or reverese reaction). In these cases, when the equilibrium is reached the rates of the forward and reverse reactions are equal, which explain why the reaction seems to stop, and a mixture of products and reactants will remain.

The two examples of reversible reactions given may be represented in this way:

The double arrow is used to indicate that the reaction is reversible. In the forward reaction, iodine and chlorine react to form iodine chloride, in the reverse reaction iodine chlorice decomposes to form the substances iodine and chlorine.

In the foward reaction, hydrogen a nitrogen combine to form amonia, in the reverse reaction ammonia decomposes producing the substances hydrogen and nitrogen.

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