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Answer:
Explanation:
Out of the choices you provided, density is an intensive property of a substance.
Here's why:
Intensive properties are inherent characteristics of a material itself, and they do not depend on the amount of the substance present. These properties remain constant regardless of the size or quantity of the sample as long as it's the same material in the same phase (solid, liquid, or gas). Examples include density, melting point, boiling point, color, and refractive index.
Extensive properties, on the other hand, depend on the amount of the substance. They change as the quantity of the substance changes. Examples include mass, volume, length, and weight.
Density specifically refers to how much mass is packed into a unit volume. A small gold nugget and a large gold bar will both have the same density because it's a property of the gold material itself, not how much gold is present.
In contrast:
Volume increases as the amount of substance increases (e.g., a bigger container of water will have a larger volume).
Length increases as the size of the object increases (e.g., a longer wooden plank).
Mass increases as the amount of substance increases (e.g., a bigger pile of sand will have a larger mass).