Question

Why is rusting of iron considered a chemical change

Answer 1

The rusting of iron is a chemical change because it is two substances reacting together to make a new substance. When iron rusts, iron molecules react with oxygen molecules to make a compound called iron oxide. Rusting would only be a physical change if iron molecules remained pure iron throughout the process.

Answer 2

hey folk
here is your answer

RUSTING OF IRON IS CONSIDERS AS A CHEMICAL CHANGE BECAUSE IT INVOLVES A CHEMICAL REACTION

Fe + H2O + O2 => Fe(OH)3 => Fe2O3.nH2O

During rusting a new substance is formed called rust ( Fe2O3.nH2O)

MAY THIS HELPS YOU