liquid plastic is frozen in a physical change that increases its volume. what can be known about the plastic…
liquid plastic is frozen in a physical change that increases its volume. what can be known about the plastic after the change?\nits mass will increase.\nits density will increase.\nits mass will remain the same.\nits density will remain the same.
Answer
Explanation:
Step1: Analyze mass in physical change
In a physical change, mass is conserved. Freezing is a physical change. So, the mass of the plastic remains the same.
Step2: Analyze density formula
Density formula is (\rho=\frac{m}{V}) (where (\rho) is density, (m) is mass, (V) is volume). Since (m) is constant and (V) increases (given volume increases in freezing), (\rho) will decrease ((\rho) and (V) are inversely - proportional when (m) is constant).
Answer:
Its mass will remain the same.