Which statement describes an extensive property of matter?
a. it changes with the color of a substance
b. it changes when a new substance is formed
c. it changes with the amount of sample that is present
d. it changes with the composition of a substance

The correct option is C.

There are two types of properties of matter, these are intensive and extensive properties of matter. A property of a matter is said to be intensive if the property does not depend on the amount of that substance that is available. Examples of intensive properties are color and density. The color of a substance will always remain the same no matter the amount present. In contrast, a property of a matter is described as extensive if that properties is determine by the amount of that substance that is available. Examples of extensive properties are mass and volume. For instance, the mass of a substance depend on the amount of that substance that is present or available.

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