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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.
A chemical change is âto change chemical properties of a materialâ which includes the reactivity with various species. The new species so formed has different reactive characteristics than initial species. Whereas a chemical reaction is the âbreaking down of bonds, or formation of bonds or bothâ, sequentially or simultaneously.