Plzz guys answer it as tomorrow is my science exam.....plzzzz guys help me!!!!!! 18th question
Answers
18B.Lead nitrate on heating decomposes to lead monoxide, nitrogen dioxide and oxygen. NO2 is liberated, along with oxygen, as a reddish brown gas. ... When heated, lead(II) nitrate crystals decompose to lead(II) oxide, oxygen and nitrogen dioxide.
18C.When sodium chloride solution is added to lead nitrate solution then it results in the formation of a precipitate of lead chloride and sodium nitrate. The reaction equation for this chemical reaction is as follows. The precipitate lead chloride is insoluble in cold water but it is soluble in hot water.
18A.on mixing a solution of barium chloride with sodium sulphate, a white precipitate of barium sulphate is immediately formed. These reactions are ionic in nature. The reactants changes into ions when dissolved in water and there is an exchange of ions in solution
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