Question

liquid plastic is frozen in a physical change that increases its volume. what can be known about the plastic after the change? its mass will increase. its density will increase. its mass will remain the same. its density will remain the same.

Explanation:

In a physical change, mass is conserved. Density is mass per volume ($
ho=\frac{m}{V}$). Since volume increases and mass stays the same, density decreases.

Answer:

C. Its mass will remain the same.