Question

4. some changes are given below. Classify them into physical change and
chemical change
a) Water changes to ice
b) Burning of firewood
c) Rusting of iron
d) Cutting of firewood​

Answer 1

Answer:

4. some changes are given below. Classify them into physical change and

chemical change

a) Water changes to ice

b) Burning of firewood

c) Rusting of iron

d) Cutting of firewood

Answer 2

Answer:

a and d are physical process as only physical state changes while in b and c chemical change occurs as b=combustion reaction and c=oxidation reaction

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