Question

why is ice melting considered to be a physical change?

the water molecules do not change chemically and are still h2o

the water molecules change into new chemicals and are no longer h2o

Explanation:

Identify the nature of physical changes

A physical change alters the form or state of a substance without changing its chemical identity.

Analyze the process of ice melting

Melting is a phase transition from solid water to liquid water. The chemical composition remains \(H_2O\) throughout the process.

Evaluate the given options

The first option states that the water molecules do not change chemically and are still \(H_2O\), which correctly defines a physical change. The second option describes a chemical change.

Answer:

• the water molecules do not change chemically and are still H2O (Correct answer)
• the water molecules change into new chemicals and are no longer H2O