Use the image below to find the density of a rock that has a mass of 60g.
Use the image below to find the density of a rock that has a mass of 60g.
The initial volume of water is 75 mL, and the volume after the rock is added is 90 mL. The volume of the rock is the difference: 90 mL - 75 mL = 15 mL. Density is mass divided by volume. Therefore, the density of the rock is 60g / 15mL = 4 g/mL.
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