Question

what are physical and chemical changes? are:a)souring of milk, b)melting the ice,c)burning the coal.

Answer 1

↑ Here is your answer ↓
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a) Souring of milk is a chemical change.

b) Melting of ice is a physical change.

c) Burning of coal is a chemical change.

Answer 2

Physical change = melting of ice
Chemical change = burning of coal and souring of milk