Question

look at the picture. then, choose the best answers.

1. choose the best answer.

the density of gasoline is 0.7429 g/ml. is density an intensive or extensive property?
extensive
intensive

1. choose the best answer.

gasoline is highly flammable. is flammability a physical or chemical property?
chemical
physical

Explanation:

• For question 4: Intensive properties do not depend on the amount of substance. Density is calculated as mass per unit volume ($

ho=\frac{m}{V}$) and for a pure substance like gasoline, its density value ($0.7429\ g/mL$ here) remains the same regardless of how much gasoline you have. So, density is an intensive property.

• For question 5: A chemical property is a characteristic of a substance that is observed during a chemical reaction. Flammability means a substance can burn (undergo a chemical reaction with oxygen, for example). It is not about a physical change (like melting, boiling, or changing shape). So, flammability is a chemical property.

Answer:

1. Intensive
2. Chemical