chemical a and chemical b react in an exothermic reaction. what can be known about what will happen when…

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?\nthe old substance will need more energy to break its chemical bonds than the new substance will release.\nmore energy will be released from the old substance than the new substance will release to form its chemical bonds.\nthe color will change as a result of the reaction.\nthe substance will bubble as a result of the reaction.

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?\nthe old substance will need more energy to break its chemical bonds than the new substance will release.\nmore energy will be released from the old substance than the new substance will release to form its chemical bonds.\nthe color will change as a result of the reaction.\nthe substance will bubble as a result of the reaction.

Answer

Brief Explanations:

In an exothermic reaction, the energy released when new - substance bonds form is greater than the energy required to break the old - substance bonds. Color change and bubbling are not inherent characteristics of exothermic reactions.

Answer:

The old substance will need less energy to break its chemical bonds than the new substance will release. (Note: This option is not present in the given choices, but among the given choices, the correct understanding is that more energy is released overall in an exothermic reaction. The closest correct - concept choice is: More energy will be released from the old substance than the new substance will release to form its chemical bonds.)