Question

List any two observations when Iron nail is dipped in copper sulphate solution or Identify the products formed when Ca reacts with Water​

Answer 1

answer..

1)when an iron nail is dipped in copper sulphate solution:

• the iron nail is covered in a brown coating .
• the colour of the copper sulphate solution changes from blue to a pale green.

2) the products formed when Ca reacts with water are hydrogen gas and a precipitate of calcium hydroxide

Answer 2

Answer:

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