Potassium chloride is react with AgNO3 , the chloride ion subtract from potassium chloride to form silver chloride precipitate and potassium nirate. KCl + AgNO3 → KNO3 + AgCl↓
lethal injection uses potassium chloride to stop the heart from working and is the 3rd drug injected since there are only 3 drugs involved during lethal injection. FYI:lethal injection uses.sodium...