A chemical change takes place when the reactant or substance in question undergoes chemical changes, that is, changes in its composition. If there are no changes in the chemical composition, the change is termed a physical change.
Any material can cause chemical change on burning as long as its chemical composition changes. For example, we use a number of fossil fuels for various applications. Take gasoline for instance, we use it in our car engines. The gasoline burns and generates gases (carbon dioxide, etc.), water vapors, etc. The reactant is gasoline, an organic material; the products are structurally different. Since, chemical changes have taken place, we end up with a chemical change. Similar is the case when we burn paper or plastic or a candle, we get chemical changes.
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