Question

Which of these is an example of a physical change? A) iron melting B) steel rusting C) paper burning Eliminate D) wood decaying

Answer 1

A) iron melting is the only example of physical change, because it's just a change of state (from solid to liquid).
The others, rusting, combustion, and decay are all chemical changes, because it will result in changing the chemical bonds between the atoms.

Answer 2

Its iron melting i made an 100% on the test