What changes occur to chemical bonds during a chemical reaction?

During a chemical reaction, several changes occur to chemical bonds:

Step 1: Define the Problem

Identify the key components of the question:

• Understanding what happens to chemical bonds during a chemical reaction.

Step 2: Break Down the Problem

Divide the problem into smaller parts:

• Identify the initial state of chemical bonds.
• Determine the process of bond breaking and formation.
• Identify the final state of chemical bonds.

Step 3: Apply Relevant Concepts

Use appropriate academic theories or formulas:

• Bond Breaking: Energy is absorbed to break the bonds of reactants.
• Bond Formation: Energy is released when new bonds form in the products.

Step 4: Analysis, Verify and Summarize

• Energy Changes: The overall energy change in the reaction is the difference between the energy required to break bonds and the energy released in forming new bonds.
• Exothermic Reactions: If more energy is released than absorbed, the reaction is exothermic.
• Endothermic Reactions: If more energy is absorbed than released, the reaction is endothermic.

Final Answer

During a chemical reaction, chemical bonds in the reactants are broken, requiring energy absorption, and new bonds are formed in the products, releasing energy. The overall energy change determines whether the reaction is exothermic or endothermic.