(1) Ntxiv barium chloride ua rau dawb precipitate, uas yog insoluble nyob rau hauv hydrochloric acid los yog nitric acid.
(2) Ntxiv cov hmoov lead acetate los ua ib qho dawb precipitate, uas yog yaj hauv ammonium acetate los yog sodium hydroxide test tov.
(3) Ntxiv hydrochloric acid tsis tsim cov precipitate dawb, uas txawv ntawm thiosulfate.
Kev txheeb xyuas cov tshuaj tiv thaiv rau sulfates
Apr 08, 2024
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