Calculate the denstiy of a block if the volume is 20.0cm3 and the mass is 40.0 g

To calculate the density of a block, you need to divide the mass of the block by its volume. The formula for density is:

Density = Mass / Volume

Given that the volume of the block is 20.0 cm^3 and the mass is 40.0 g, you can substitute these values into the formula:

Density = 40.0 g / 20.0 cm^3

Now, divide the mass by the volume:

Density = 2.0 g/cm^3

The density of the block is 2.0 g/cm^3.