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Hello Dear ,
Here is your required Answer
1. Observation of the reaction is :
~ The blue colour of copper sulphate solution changes to green due to the formation of Iron sulphate solution.
~The deposition of brown coating of copper on iron nail
2.Conversion of milk into cud is a chemical change as melting of ice is a physical change.
3.Respiration is an exothermic reaction as it releases a large amount of energy with carbon dioxide
4.Copper vessels when in contact with air and moisture corrode lose their shine and turn black
HOPE IT HELPED !!!
Here is your required Answer
1. Observation of the reaction is :
~ The blue colour of copper sulphate solution changes to green due to the formation of Iron sulphate solution.
~The deposition of brown coating of copper on iron nail
2.Conversion of milk into cud is a chemical change as melting of ice is a physical change.
3.Respiration is an exothermic reaction as it releases a large amount of energy with carbon dioxide
4.Copper vessels when in contact with air and moisture corrode lose their shine and turn black
HOPE IT HELPED !!!
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