Question

A chemist dissolves silver nitrate (agno3) in water. he also dissolves ammonium chloride (nh4cl) in water. he mixes the two solutions. a precipitate of silver chloride (agcl) forms. which chemical equation correctly represents this reaction? agno3(s) + nh4cl(s) agcl(s) + nh4no3(s) agno3(aq) + nh4cl(aq) agcl(aq) + nh4no3(aq) agno3(aq) + nh4cl(aq) agcl(s) + nh4no3(aq)

Answer 1

Answer is: AgNO₃(aq) + NH₄Cl(aq) → AgCl(s) + NH₄NO₃(aq).
aq(aqueous) means dissolved in water.
s(solid) means that salt (in this reaction AgCl) not dissolved in water.
In this chemical reaction silver has oxidation number +1, nitrate -1, ammonium +1 and chloride -1.
Silver chloride is white crystalline solid.