Question

Write the balanced chemical equations for the
following reactions :
a) Manganese dioxide and concentrated hydrochloric
acid.
a) Sodium thiosulphate and iodine.
(i) Copper and dilute nitric acid
(v) Sulphur dioxide and hydrogen sulphide.​

Answer 1

Answer:

MgO + 2Hcl = MgCl2 + H2O

Explanation:

rest I have doubt

Answer 2

(i) When dilute hydrochloric acid is added to lead nitrate solution. white ppt of lead chloride appears