Write a balance equation for each reaction:

1. iron () and copper (ii) sulfate solution
2. lead (ii) nitrate and potassium iodide solutions
3. magnesium metal ribbon and hydrochloric acid solution
4. electrolysis of water
5. burning magnesium

The balanced chemical reactions of the following are:1. Iron () and copper (II) sulfate solution
2 Fe + 3 CuSO4 = 3 Cu + Fe2(SO4)3 
 
2. Lead (II) nitrate and potassium iodide solutions 
 Pb(NO3)2 + 2 KI = 2 KNO3 + PbI2 

3. Magnesium metal ribbon and hydrochloric acid solution 
Mg + 2 HCl = MgCl2 + H2 

4. Electrolysis of water 
2 H2O = 2 H2 + O2 

5. Burning magnesium 
Mg + O2 = 2 MgO 

Hope this answers the question. Have a nice day.

Both models are effective because they show the valence electrons, and these valence electrons indicate the reactivity of an element.

Idon't know hope someone you