Accepted Answer
In order to determine the density of the pebble, Nabil requires a balance to measure the mass of the pebble.What is the density of a substance?The density of a substance is the measure of how tightly-packed the particles in the substance are.Density is the ratio of the mass and volume of the substance.Density = mass/volumeTo determine the density of a substance, the mass of the substance is measured with a balance and the volume of the substance if it is solid is measured using a displacement can and a beaker.Learn more about density at: https://brainly.com/question/952755#SPJ1