The ball is made from a material with a density of 19.33 g/mL.
The density of an object can be calculated by dividing its mass by its volume.
In this case, the mass of the ball is given as 23.2 g.
The volume of the ball can be determined by calculating the difference in water level before and after submerging the ball.
When the water level increased by 1.2 cm³, it means that the ball displaced 1.2 cm³ of water.
To find the volume of the ball in units of mL, convert 1.2 cm³ to mL. Since 1 cm³ is equal to 1 mL, the volume of the ball is 1.2 mL.
Therefore, the ball is made from a material with a density of 23.2 g/1.2 mL, or 19.33 g/mL.