The answer is: [D]: " AgCl " .
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Explanation:
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Given the chemical reaction:
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NaCl (aq) + AgNO₃ (aq) → NaNO₃ (aq) + AgCl (s) ;
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The "reactants" , which are on the "left-hand side" of the chemical equation, are:
"NaCl" (in aqueous solution); and "AgNO₃" (in aqueous solution).
The "products", which are on the "right-hand side" of the chemical equation, are:
"NaNO₃" (in aqueous solution); and: "AgCl" (as a "solid").
The "AgCl" (as a "product"—which is a "solid"—would be the "precipitate" ;
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→ which is: Answer choice: [D]: " AgCl " .
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