Final answer:
The mass of a rock with a volume of 10mL and a density of 5g/mL is calculated using the formula mass = density × volume. The result is 50g.
Step-by-step explanation:
The student asks about the mass of a rock given its volume and density. To find the mass, we use the formula mass = density × volume. Since the rock's volume is 10mL and the density is 5g/mL, the calculation is as follows:
Mass = Density × Volume = 5g/mL × 10mL = 50g
Therefore, the correct answer is D) 50g.