Write the balanced chemical equation for each of the following reactions: (i) Sodium sulphide is treated with dilute hydrochloric acid. (ii) Formation of an insoluble iron salt by direct combination reaction. (iii) A decomposition reaction of salt which leaves behind yellow residue which turns white on cooling. (iv) Copper oxide is treated with dilute sulphuric acid. (v) Steam is passed over red-hot iron.

Write the balanced chemical equation for each of the following reactio

1.	Write the balanced chemical equation for each of the following reactions: (i) Sodium sulphide is treated with dilute hydrochloric acid. (ii) Formation of an insoluble iron salt by direct combination reaction. (iii) A decomposition reaction of salt which leaves behind yellow residue which turns white on cooling. (iv) Copper oxide is treated with dilute sulphuric acid. (v) Steam is passed over red-hot iron.
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