Question

1. evaluate a friend tells you, \because composition does not change during a physical change, the appearance of a substance does not change.\ is your friend correct? explain.

Explanation:

A physical change can affect the appearance of a substance without changing its composition. For example, melting ice (solid - water) into liquid water changes its state from solid to liquid, altering its appearance (shape, flow - ability), but it is still water chemically (H₂O).

Answer:

No, the friend is not correct.