Are the changes of water to ice and water to steam, physical or chemical? Explain. Class 7

Are the changes of water to ice and water to steam, physical or chemical? Explain. Class 7

Are the changes of water to ice and water to steam, physical or chemical? Explain. Class 7

Answer:

Both, the change of water to ice and water to steam are physical changes, because, in both processes, no new substance is formed. Only the state of water changes from liquid to solid (in ice) or from liquid to gas (in steam). The chemical composition of water remains the same.