Final answer:
To classify scenarios as physical or chemical properties, one must assess whether the substance's composition changes. Physical properties can be observed without changing the composition, while chemical properties involve a change that results in new substances. Extensive properties are dependent on the amount of matter, while intensive properties are not.
Step-by-step explanation:
The question asks to determine whether certain scenarios are examples of physical properties or chemical properties, and to classify certain changes as physical or chemical. Additionally, the question requires explaining the difference between extensive properties and intensive properties.
Physical Properties and Chemical Properties
Physical properties are characteristics that can be observed or measured without changing the composition of the substance, such as color, mass, and volume. Chemical properties, on the other hand, describe the substance's ability to undergo a change that transforms it into a different substance, involving changes in chemical composition, such as flammability and reactivity. For example, the melting of ice is a physical change because it involves a change in state without altering the chemical composition of water. In contrast, the burning of coal is a chemical change as it results in the formation of new substances like carbon dioxide and ash.
Extensive Properties vs. Intensive Properties
Extensive properties depend on the amount of matter present, such as mass and volume, while intensive properties are independent of the amount of matter, such as density and temperature.