Multiple Choice
Which statement describes a property of covalent compounds?
11. Bonding & Molecular Structure
Chemical Bonds
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What happens to chemical bonds during chemical reactions?
A
Chemical bonds are broken and new bonds are formed.
B
Chemical bonds remain unchanged.
C
Chemical bonds are only formed, not broken.
D
Chemical bonds are only broken, not formed.
Verified step by step guidance1
Understand the nature of chemical reactions: Chemical reactions involve the transformation of reactants into products, which requires changes in the arrangement of atoms.
Recognize the role of chemical bonds: Chemical bonds are the forces that hold atoms together in molecules. During a chemical reaction, these bonds must be altered to form new substances.
Identify the process of breaking bonds: In order for reactants to be converted into products, the chemical bonds in the reactants must be broken. This requires energy input, known as bond dissociation energy.
Understand the formation of new bonds: After the original bonds are broken, new bonds are formed to create the products of the reaction. This process releases energy, which can be observed as heat or light.
Summarize the overall change: Chemical reactions involve both the breaking of existing bonds and the formation of new bonds, resulting in the transformation of reactants into products with different chemical properties.
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