Is a piece of ice melting and reacts with sodium a chemical change?

Yes, the melting of ice is a physical change, as it involves a change in state from solid to liquid without altering the chemical composition of water. However, when ice (water) reacts with sodium, it produces sodium hydroxide and hydrogen gas, which constitutes a chemical change because new substances are formed. Therefore, the overall process includes both a physical change (melting of ice) and a chemical change (reaction with sodium).