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(i)写出X.Y和Z的名称。(ii)用方程式解释下列反应的可见现象:(1)把固体加热,(2)H_2S和Y溶液的反应,(3)NaOH溶液与X溶液的反应,(4)NaOH溶液与Z溶液的反应,(5)硝酸酸化的AgNO_3溶液与X溶液的反应,(6)盐酸酸化的BaCl_2溶液与Z溶液的反应。(iii)加氨水于下列溶液时,有什么现象?不需写反应方程式。(1)X溶液,(2)Y溶液,(3)Z溶液,答案:(i)X是NH_4Cl.Y是Pb(NO_3)_2.Z是ZnSO_4
(i) Write out the names of X.Y and Z. (ii) Using the equations to explain the visible phenomena of the following reactions: (1) heating the solid, (2) reaction of H2S and Y solution, (3) reaction of NaOH solution with X solution, (4) reaction of NaOH solution with Z solution (5) Reaction of nitric acid-acidified AgNO3 solution with X solution, (6) Reaction of hydrochloric acid-acidified BaCl2 solution with Z solution. (iii) What happens when ammonia is added to the following solutions? There is no need to write a reaction equation. (1) X solution, (2) Y solution, (3) Z solution, answer: (i) X is NH_4Cl. Y is Pb(NO_3)_2. Z is ZnSO_4