Question

30 pts! Balancing equations. 2. For Part 2: Single-Displacement Reactions: For each of the four single-displacement reactions, describe what happened in each well. If a chemical reaction occurred, write a balanced equation for it. Then using the A, B symbols, write a general equation for a single-displacement reaction. A+BC=AC+B

Here are the chemical formulas of the reactants for each reaction:
• zinc – Zn
copper sulfate – CuSO4 Zn+CuSO4->Cu+ZnSO4
• aluminum – Al
copper sulfate – CuSO4 No reaction
• zinc – Zn
silver nitrate – Ag(NO3)
• copper – Cu
silver nitrate – Ag(NO3)

Answer 1

Single-displacement reaction : It is a type of reaction in which a more reactive metal displace the less reactive metal from the solution.

General equation for single-displacement reaction is,

`A+BC\rightarrow AC+B`

In this reaction, A displaces B because A is more reactive than B.

These reactions answered on the basis of reactivity series. The reactivity series image is shown below.

• Zinc react with copper sulfate

The balanced reaction is,

`Zn+CuSO_4\rightarrow ZnSO_4+Cu`

When zinc react with copper sulfate then zinc displaces the copper from copper sulfate because zinc is more reactive metal than the copper.

• Aluminium react with copper sulfate

The balanced reaction is,

`2Al+3CuSO_4\rightarrow Al_2(SO_4)_3+3Cu`

When aluminium react with copper sulfate then aluminium displaces the copper from copper sulfate because aluminium is more reactive metal than the copper.

• Zinc react with silver nitrate

The balanced reaction is,

`Zn+2AgNO_3\rightarrow Zn(NO_3)_2+2Ag`

When zinc react with silver nitrate then zinc displaces the silver from silver nitrate because zinc is more reactive metal than the silver.

• Copper react with silver nitrate

The balanced reaction is,

`Cu+2AgNO_3\rightarrow Cu(NO_3)_2+2Ag`

When copper react with silver nitrate then copper displaces the silver from silver nitrate because copper is more reactive metal than the silver.