Chemical a and chemical b react in an exothermic reaction. what can be known about what will happen when chemical a and chemical b are mixed together?

the new substance will need more energy to form its chemical bonds than the old substance will release.

more energy will be released from the old substance than the new substance will need to form its chemical bonds.

the color will change as a result of the reaction.

the substance will bubble as a result of the reaction.

As, chemical A and chemical B react in an exothermic reaction implies when they combined together, the temperature decreases which results in release of energy.

Exothermic reaction is defined as the reaction in which energy is released. Chemical A reacts with Chemical B results in the formation of product with release in energy and formation of bonds occurs.

Generally, in the chemical reactions, the energy is required to break the bonds and energy is released when bonds are formed.

Now, in exothermic reactions, energy is needed to break the bonds between chemical A and chemical B and for the formation of new substance energy is released i.e. bond formation takes place.

Thus, more energy will be released from the old substance than the new substance will need to form its chemical bonds is the correct answer.

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