Which of the following is NOT a characteristic of chemical and physical properties?

Color is a physical property of a substance, but it is not classified as a characteristic of chemical properties. Chemical properties relate to a substance's potential to undergo a chemical change or reaction, while physical properties describe the characteristics of a substance that can be observed or measured without changing its composition.

Flammability, vapor density, and corrosiveness are all characteristics that involve a substance's reaction with other materials or its behavior under certain conditions, which aligns with the definition of chemical properties. Flammability describes how a substance reacts when exposed to flame, while corrosiveness refers to a material's ability to cause damage to living tissue or materials through chemical action. Vapor density involves a comparison of the density of a gas relative to the density of air, which can also be influenced by chemical interactions.

In summary, while color provides important information about a substance’s appearance, it does not indicate how the substance will behave chemically, making it distinct from the other options, which are all related to chemical characteristics.