answer the following questions
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1chemical
physical
ch....
ch....
paper=physical
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melting of wax- both physical and chemical.
cutting of trees - chemical change
digestion of food- chemical change
sublimation of solid- physical change
dissolving co2 in water- both type of change
rusting of iron- chemical change
tearing a piece of paper- physical change
glowing of electricity bulb- physical change
boiling/freezing/condensation- physical change.
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