Final answer:
To find the mass of an object given its density (5.2 g/cm³) and volume (3.7 cm³), you multiply the two, resulting in a mass of 19.24 g, which rounds to 19 g based on significant figures.
Step-by-step explanation:
The question asks to find the mass of an object given its density and volume. According to the principle that density is mass divided by volume, and by using the provided density of 5.2 g/cm³ and a volume of 3.7 cm³, we can calculate the mass by multiplying the two values together.
To calculate mass: mass = density × volume, which in this case is mass = 5.2 g/cm³ × 3.7 cm³. Performing this calculation gives us a mass of 19.24 g, which we round to 19 g because the volume was given to two significant figures.
The correct answer to the student's question is therefore 19 g.