Question

1. a cube of ice melts into liquid water in your glass. later, the water is boiled on the stove and steam escapes into the air. are either of these chemical changes? explain your answer.

Explanation:

A chemical change results in new substances with different chemical properties. When ice melts into water and water boils into steam, the substance remains H₂O throughout. Only the physical state (solid - liquid - gas) changes. These are physical changes, not chemical changes.

Answer:

No, neither of these are chemical changes. They are physical changes as the chemical composition of water (H₂O) remains the same throughout the melting and boiling processes; only the physical state changes.