Question

Chemical changes may involve exchange of energy in the form of

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Answer 1

Explanation:

Chemical reactions often involve changes in energy due to the breaking and formation of bonds. Reactions in which energy is released are exothermic reactions, while those that take in heat energy are endothermic.

Answer 2

Chemical changes may involve the exchange of energy in the form of heat.

About chemical changes:

• Chemical synthesis, or, alternatively, chemical breakdown into two or more separate molecules, occurs when one material reacts with another to create a new substance.
• These processes are referred to as chemical reactions, and they are typically irreversible barring additional chemical reactions.
• A chemical change occurs when one chemical substance is changed into one or more distinct chemicals, like when the iron is changed into rust.
• Chemical changes are brought about by the process of chemical reactions, and the substances that are produced have varied qualities because of the diverse ways that their atoms and molecules are structured.

Chemical changes that involve heat:

• Reactions that release thermal energy are called exothermic.
• The synthesis of new bonds in the products causes the reaction to generate too much heat.
• Combustion reactions are among the exothermic reaction types that are most readily apparent.
• Reactions that are endothermic absorb energy from their surroundings.
• The energy is often transported as heat energy, which results in a cooling of the reaction mixture and its surroundings.

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