Final answer:
The measurement of 254 grams is a scalar quantity, as it only provides magnitude, in this case, the amount of mass, without any directional component.
Step-by-step explanation:
The measurement of 254 grams can be classified as a scalar quantity. Scalar quantities only have magnitude and no direction, and they are expressed by a single number along with a unit of measure. The given measurement specifies the mass of an object, which is inherently a scalar quantity because mass does not have a direction associated with it. It simply quantifies the amount of matter in an object. In contrast, vector quantities are those that have both magnitude and direction, such as force or velocity.