Question

The melting of ice a physical change because the change can be reversed, and the water still keeps its chemical properties.

a) True
b) False

Answer 1

The melting of ice is a reversible physical change where the molecular composition of water remains the same, confirming that the melting of ice is a physical change.

Step-by-step explanation:

The melting of ice is indeed a physical change because it is a reversible process and the water retains its chemical properties. When ice melts, it undergoes a change of state from solid to liquid, but the molecular composition of water (H2O) remains unchanged, consisting of 11.19% hydrogen and 88.81% oxygen by mass.

This reversible physical change occurs at a particular temperature known as the melting point. Similar to the melting of ice, freezing, where liquid water turns back into solid ice, occurs at the same temperature, which is also called the freezing point.