Final answer:
Chemical properties describe how a substance behaves or reacts with other substances, involving a change in the composition of matter. Examples include pH, flammability, reactivity, and electronegativity.
Step-by-step explanation:
pH, flammability, reactivity with other substances, and electronegativity are examples of chemical properties of a substance. Chemical properties describe how a substance behaves or reacts with other substances, and they involve a change in the composition of matter. For example, pH measures the acidity or alkalinity of a substance and is a chemical property because it depends on the presence of certain chemical ions in the substance. Flammability is also a chemical property because it describes the ability of a substance to burn.