Are all chemical reactions reversible

Answer 1

Some chemical changes are easily reversible, though most are not.

An example of a reversible chemical reaction is as follows:

H2O + CO2 <-> H2CO3

When carbon dioxide is run into water under pressure, they react to form carbonic acid (seltzer water), when the pressure is released, the carbon dioxide dissociates with the water and bubbles off into the atmosphere (the seltzer water goes flat).

The following reaction is irreversible:

CH4 + 3O2 -> CO2 + 2H2O

Answer 2

The short answer is: some are, some aren't.

Some reactions are reversible and can happen in both directions, which both can happen at different rates until an equilibrium is reached. Varying the conditions can affect the balance point at which the forward and backward reactions happen at the same rate to cancel out. This is Le Chȃtelier's Principle.

To tell if a reaction should be considered as reversible, a different symbol can be used. This symbol "⇌" has two arrows to show that the reaction can happen in both directions, whereas this symbol "→" can indicate that the reaction is only being considered in one direction.

Answer 3

Yes, chemical changes are reversible. Some, though are extremely difficult to reverse.For example, you cannot unrot food. Plants can take the products of decay and build them into new foods, but it often takes several steps.

Answer 4

No, not all chemical reactions are reversible. While some reactions can proceed in both forward and reverse directions, others are irreversible, meaning they do not easily revert back to the original reactants. It depends on the nature and conditions of the specific reaction.

Answer 5

A reversible reaction occurs when the products react to produce the original reactants. Most chemical reactions are irreversible, where the products cannot convert back to the reactants.

Answer 6

Usually irreversible.but some are reversible.if reactions @ equibrillium they are reversible.

Answer 7

no