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*If the reaction of burning magnesium is a chemical change, then we should be able to see a change in color, smell, or any other properties of a chemical change (the substance should change). Discussion. Results/Pictures. Identifying a Physical or Chemical Change in Burning Magnesium. Methods. * Materials used.
Chemical reaction is a process of changing from one chemical state to another and chemical change is a change in the state of a material. For example, Iron when exposed to atmosphere becomes rust. Here, chemical reaction is called ârustingâ and the chemical change is âfrom iron to iron oxideâ.