Question

possible points
an ice cube melts from solid to liquid. choose which of the following options would happen based on this phase change of water.
○ increase its volume
◎ decrease its mass
○ decrease its density
○ increase its density

Explanation:

When ice (solid water) melts to liquid water:

1. Mass is conserved, so mass does not decrease.
2. Ice has a lower density ($0.917\ \text{g/cm}^3$) than liquid water ($1.0\ \text{g/cm}^3$) at standard conditions, so density increases.
3. Since density $

ho=\frac{m}{V}$, and mass $m$ is constant, the increase in density means volume decreases, not increases.

Answer:

increase its density