Question

Given the balanced equation representing a reaction:

Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)

Which type of reaction is represented by this equation?

1.

decomposition
2.

double replacement
3.

single replacement
4.

synthesis

Answer 1

The answer is Single replacement

Answer 2

Answer: Option (3) is the correct answer.

Step-by-step explanation:

A single replacement reaction is defined as the reaction where an element on reaction with a compound tends to displace another element in that compound.

For example,
`Zn(s) + H_(2)SO4(aq) \rightarrow ZnSO_(4)(aq) + H_(2)(g)` is a single replacement reaction.

Also, when number of atoms on reactant side equal to the number of atoms on product side then it is known as a balanced chemical reaction.

In a synthesis reaction, two elements combine together and result in the formation of a single product.

For example,
`A + B \rightarrow AB`

In a decomposition reaction, a compound splits or breaks into two atoms.

For example,
`AB \rightarrow A + B`

Thus, we can conclude that
`Zn(s) + H_(2)SO4(aq) \rightarrow ZnSO_(4)(aq) + H_(2)(g)` represents a balanced single replacement chemical reaction.