Science, asked by shreya179, 1 year ago

Which of these is a chemical change??
Reaction between calcium hydroxide
Reaction between copper sulphate solution and iron
Reaction between magnesium oxide and water

Answers

Answered by Sid77

1

reaction between Cuso4 and Fe as there is change in colour of nail and liquid also the chemical properties change.

Answered by palak64

2

the answer is 2 ......

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