Which term is defined as a property or characteristic observed in a substance during a reaction?

Which term is defined as a property or characteristic observed in a substance during a reaction?

• A. Chemical property
• B. pH
• C. Salt
• D. Hydrogen ion

Answer: (A)

Observing a substance during a reaction points to its chemical property. Chemical properties describe how a substance behaves when it undergoes a chemical change—things like reactivity with other substances, combustibility, or how it oxidizes. This is different from pH, which is a measure of how acidic or basic a solution is, and from a salt or a hydrogen ion, which are substances or particles rather than the way a substance behaves during a reaction. So the best term for a property seen in the process of a reaction is a chemical property.

Observing a substance during a reaction points to its chemical property. Chemical properties describe how a substance behaves when it undergoes a chemical change—things like reactivity with other substances, combustibility, or how it oxidizes. This is different from pH, which is a measure of how acidic or basic a solution is, and from a salt or a hydrogen ion, which are substances or particles rather than the way a substance behaves during a reaction. So the best term for a property seen in the process of a reaction is a chemical property.