Question

Write one observation:

i) When iron nail is immersed in copper sulphate solution.

ii) When ammonium dichromate is heated.​

Answer 1

Answer:

hi mate

Explanation:

A=When an iron nail is immersed in the aqueous solution of copper sulphate, a brown coating of copper is developed over iron and the blue copper sulphate solution becomes pale green since iron is more reactive than copper.

B=Ammonium dichromate decomposes on heating to produce nitrogen gas, water vapor (gaseous due to the temperature of the reaction), and solid chromium(III) oxide. The skeletal net reaction is shown below, unbalanced, along with the molecular weights of the compounds involved in the decomposition.

plzz mark me brainliest

Answer 2

Answer:

hi mate

Explanation:

A=When an iron nail is immersed in the aqueous solution of copper sulphate, a brown coating of copper is developed over iron and the blue copper sulphate solution becomes pale green since iron is more reactive than copper.

B=Ammonium dichromate decomposes on heating to produce nitrogen gas, water vapor (gaseous due to the temperature of the reaction), and solid chromium(III) oxide. The skeletal net reaction is shown below, unbalanced, along with the molecular weights of the compounds involved in the decomposition.

plzz mark me brainliest