Respuesta :

Answer:

The answer is 50 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

volume = 20 mL

density = 2.5 g/mL

We have

mass = 20 × 2.5

We have the final answer as

50 g

Hope this helps you