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Q3.Classify the changes involved in the following processes as physical or chemical changes:a) Photosynthesis b)Dissolving sugar in water c)Burning of coal d)Beating alumunium to make aluminium foil e)Digestion of food |
| Answer» CHEMICAL CHANGES: Photosynthesis.burning of coal.digestions of food.Physical changes:Beating alumunium to MAKE aluminium.Dissolving sugar in water. | |