Question

select the correct answer.
a student carries out this chemical reaction in a beaker.
zn + cucl₂ → cu + zncl₂.
after the reaction has come to completion, what should the student expect to find in the beaker?
○ a. zn and cucl₂
○ b. zn, cucl₂, cu, and zncl₂
○ c. cu and zncl₂
○ d. zncl₂ only

Explanation:

In a chemical reaction \( \text{Zn} + \text{CuCl}_2
ightarrow \text{Cu} + \text{ZnCl}_2 \), when the reaction is complete, the reactants (Zn and \( \text{CuCl}_2 \)) are fully consumed to form the products (Cu and \( \text{ZnCl}_2 \)). So there won't be any remaining reactants. Option A has remaining reactants, B has both reactants and products (which is wrong as reaction is complete), D is wrong because Cu is also a product (a solid metal formed). So the products are Cu and \( \text{ZnCl}_2 \).

Answer:

C. Cu and \( \text{ZnCl}_2 \)