Question

1. which will float in water (density = 1 g/ml): an object with a density of 0.8 g/ml or 1.2 g/ml?

Explanation:

Step1: Recall density - floating rule

An object floats in a liquid if its density is less than the density of the liquid.

Step2: Compare densities

The density of water is 1 g/mL. The density of the first object is 0.8 g/mL which is less than 1 g/mL, and the density of the second object is 1.2 g/mL which is greater than 1 g/mL.

Answer:

An object with a density of 0.8 g/mL will float in water.