38. Решение задачки по химии №233

28. Write an equation for the reactions of authenticity to the bismuth cation. Write equations for the reaction of authenticity to basic bismuth nitrate. Why does basic bismuth nitrate, moistened with water, turn blue litmus paper red? Support your answer with the reaction equation. Explain the chemical essence of determining the copper impurity in bismuth nitrate, mainly, the reaction equations in the presence of an impurity.

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