Final answer:
Flammability is a chemical property as it involves a change in the substance's chemical composition when it burns, while mass is a physical property and not chemical.
Step-by-step explanation:
Among the options provided, flammability is a chemical property. Chemical properties are characteristics of matter that involve changes in chemical composition. Flammability specifically refers to the ability of a substance to burn or ignite, causing it to change into new substances as it reacts with oxygen. This is distinct from mass, which is a measurement of the amount of matter in an object and is considered a physical property, not a chemical one. Other examples of chemical properties include reactivity with water, toxicity, and acidity.
A chemical property describes how matter changes form in the presence of other matter. Examples of chemical properties include flammability, toxicity, acidity, and reactivity. For example, a match burning is a chemical property because it undergoes a chemical change when it reacts with oxygen to produce heat and light.