If dissolving sugar in water is a physical change then what about is digestion in food?
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Muscular movement in the stomach causes food particles to become even smaller. This is a physical change. Enzymes and digestive juices in the stomach work to chemically break down proteins into amino acids. ... Now in the form of large and small molecules, the food undergoes mostly chemical changes.
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(a) Photosynthesis → Chemical change
(b) Dissolving sugar in water → Physical change
(c) Burning of coal → Chemical change
(d) Melting of wax → Physical change
(e) Beating aluminium to make aluminium foil → Physical change
(f) Digestion of food → Chemical change
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