What term describes the ability or inability of a substance to combine with or change into one or more substances?

• A. Physical Property
• B. Chemical Property
• C. Physical Changes
• D. Chemical Changes

Answer: (B)

Focusing on how a substance behaves in reactions is the idea here. Describing a substance by its ability or inability to combine with or change into one or more substances is all about its reactivity—whether it will undergo chemical changes that alter its identity and composition. That is what a chemical property captures. Physical properties describe things you can observe without changing what the substance is (like color, density, melting point), while physical changes alter form or state without making a new substance. Chemical changes, on the other hand, are the actual transformations into new substances. So this description points to chemical property as the best fit.