2FeCl3(aq) + 3Pb(NO3)2(aq) → 2Fe(NO3)3(aq) + 3PbCl3(s)
What roll does the iron (III) chloride play in the chemical reaction, when 50.0 mL of 0.100M iron (III) chloride is mixed with 50.0 mL of 0.100M lead (II) nitrate?

A) Iron (III) chloride decreases the amount of precipitate.
B) The reactant iron (III) chloride increases product yield.
C) Iron (III) chloride is the excess reactant in the reaction.
D) The iron (III) chloride is the reaction's limiting reactant.

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The appropriate concentration for an iodine sanitizer is

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.