Writing Chemical Equation

Q.

Define the term chemical displacement reaction. Support your answer with two examples and write fully balanced chemical equations.

Q. Represent the following reaction in the form of a chemical equation (balancing not required):

Iron reacts with copper sulphate solution to produce copper and ferrous sulphate.

1. $\text{Fe(s)}+{\text{CuSO}}_4\text{(aq)}\to \text{Co(aq)}+{\text{FeSO}}_4\text{(aq)}$
2. $\text{Fe(s)}+{\text{CuSO}}_4\text{(aq)}\to \text{Cu(s)}+{\text{FeSO}}_4\text{(aq)}$
3. $\text{Fe}+{\text{CuSO}}_4\to \text{Co}+{\text{Fe(SO}}_4{)}_{\text{a}}$
4. $\text{Fe(s)}+{\text{CuSO}}_4\text{(l)}\to \text{Cu(s)}+{\text{Fe(SO}}_4{)}_{\text{{a}(l)}}$

Q. When the state of a substance is written in brackets in a chemical reaction, “aq” stands for ___

1. Aqueous
2. Liquid
3. Unknown
4. Water

Q.

Complete and balance the following equation and also state the type of reaction that is taking place:

${\mathrm{FeCl}}_2+\mathrm{Zn}\stackrel{∆}{\to }$

Q.

What type of oxide would Eka-aluminium form?

1. 

2. 

3. 

4. EO