What are some examples of chemicak change?

Answer 1

Examples of chemical changes include rusting of iron, where iron reacts with oxygen and moisture to form iron oxide; burning wood, which transforms cellulose into ash, carbon dioxide, and water; and the reaction of vinegar with baking soda, producing carbon dioxide gas and water. Other examples include fermentation, where yeast converts sugars into alcohol and carbon dioxide, and digestion, where food is broken down into simpler substances. These processes are characterized by the formation of new substances and often involve energy changes.