Question

What happens when a zinc strip is dipped into a copper sulfate solution?
A.Write the equation for the reaction that takes place.
B.Name the type of reaction involved.

Answer 1

In chemistry, metal, nonmetal, and metalloid react according to their capability of reactivity. During the chemical reaction, high reactive elements replace the low reactive or combine. Thus, the new product is formed.

Complete answer:
As we know that chemical reactions work according to the reactivity series. Generally, metal easily loses the electron and nonmetal gain. The common reactivity series is here. In this series, the topmost metal potassium is the most reactive element, and the last one is the least reactive.
$K \\\ Na \\\ Ca \\\ Mg \\\ Al \\\ C \\\ Zn \\\ Fe \\\ Sn \\\ Pb \\\ H \\\ Cu \\\ Ag \\\ Au \\\ Pt \\\$

According to the question, we have a zinc strip and copper sulfate solution.
Now, $Zn + CuS{O_4} \to ZnS{O_4} + Cu$
According to the above reactivity series, zinc is above copper in the reactivity series. Therefore, zinc is more reactive than copper. So, in this reaction zinc replaced copper from copper sulfate and became zinc sulfate.
B.There are four types of chemical reactions.
Combination reaction - When two elements are combined and formed a new product is known as a combination reaction. Like,
$A + B \to AB$
Decomposition reaction - When the complex compound breaks in the simple element is known as a decomposition reaction. Like,
$PQ \to P + Q$
Displacement reaction - When one element takes the place of another or replaces it is known as a displacement reaction.
$X + YZ \to XZ + Y$
Double Displacement - When two-element take place of the other two is known as a double displacement reaction.
$AB + CD \to AC + BD$
Here, we found that $Zn + CuS{O_4} \to ZnS{O_4} + Cu$ is a displacement reaction. Where one replaces the other.

Note: In a chemical reaction, the reactant reacts and the product is formed. Some other types of chemical reactions are also available in chemistry. Like, Precipitation reaction - When two solutions of salt mixed and get insoluble solid are known as precipitation. Neutralization - When acid, base react then give salt and water is known as neutralization.