Chemistry, 27.07.2021 16:20 kobz

A sample of insoluble chlorides was prepared for analysis using aqueous solutions of lead (II) nitrate, silver nitrate, and mercury (I) nitrate with concentrated hydrochloric acid. To a portion of this sample, aqueous NH3 was added followed by a nitric acid solution, and a white precipitate was formed. Required:
a. What ion is present in this sample (i. e. what ion is responsible for the formation of the precipitate)?
b. What is the net ionic equation for the formation of the first precipitate of this ion (i. e. ion formed when concentrated hydrochloric acid was added to the solutions), including states of matter?

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