Answer :
(1) ![Cl_2+2LiI\rightarrow 2LiCl+I_2](/tpl/images/0685/4290/63ffa.png)
(2) ![N_2+3H_2\rightarrow 2NH_3](/tpl/images/0685/4290/fec76.png)
(3) ![Ca(OH)_2+2HCl\rightarrow CaCl_2+H_2O](/tpl/images/0685/4290/baaab.png)
(4) ![2Al(NO_3)_3+3H_2SO_4\rightarrow Al_2(SO_4)_3+6HNO_3](/tpl/images/0685/4290/aaa70.png)
(5) ![C_4H_8+6O_2\rightarrow 4CO_2+4H_2O](/tpl/images/0685/4290/628f9.png)
(6) ![(NH_4)_2SO_4+2KOH\rightarrow K_2SO_4+2NH_3+2H_2O](/tpl/images/0685/4290/4469c.png)
(7) ![2C_2H_2+5O_2\rightarrow 4CO_2+2H_2O](/tpl/images/0685/4290/6121d.png)
(8) ![2H_3PO_4+3Mg(OH)_2\rightarrow Mg_3(PO_4)_2+6H_2O](/tpl/images/0685/4290/b5c63.png)
(9) ![Al(NO_3)_3+3NaOH\rightarrow 3NaNO_3+Al(OH)_3](/tpl/images/0685/4290/00ea5.png)
(10) ![BaCl_2+Na_2SO_4\rightarrow BaSO_4+2NaCl](/tpl/images/0685/4290/2033a.png)
Explanation :
Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.
Part 1 :
The unbalanced chemical reaction is,
![Cl_2+LiI\rightarrow LiCl+I_2](/tpl/images/0685/4290/14a10.png)
In order to balance the chemical equation, the coefficient '2' put before the
and
then we get the balanced chemical equation.
The balanced chemical reaction will be,
![Cl_2+2LiI\rightarrow 2LiCl+I_2](/tpl/images/0685/4290/63ffa.png)
Part 2 :
The unbalanced chemical reaction is,
![N_2+H_2\rightarrow NH_3](/tpl/images/0685/4290/54acc.png)
In order to balance the chemical equation, the coefficient '3' put before the
and the coefficient '2' put before the
then we get the balanced chemical equation.
The balanced chemical reaction will be,
![N_2+3H_2\rightarrow 2NH_3](/tpl/images/0685/4290/fec76.png)
Part 3 :
The unbalanced chemical reaction is,
![Ca(OH)_2+HCl\rightarrow CaCl_2+H_2O](/tpl/images/0685/4290/57d85.png)
In order to balance the chemical equation, the coefficient '2' put before the
then we get the balanced chemical equation.
The balanced chemical reaction will be,
![Ca(OH)_2+2HCl\rightarrow CaCl_2+H_2O](/tpl/images/0685/4290/baaab.png)
Part 4 :
The unbalanced chemical reaction is,
![Al(NO_3)_3+H_2SO_4\rightarrow Al_2(SO_4)_3+HNO_3](/tpl/images/0685/4290/fe5d5.png)
In order to balance the chemical equation, the coefficient '2' put before the
, the coefficient '3' put before the
 and the coefficient '6' put before the
then we get the balanced chemical equation.
The balanced chemical reaction will be,
![2Al(NO_3)_3+3H_2SO_4\rightarrow Al_2(SO_4)_3+6HNO_3](/tpl/images/0685/4290/aaa70.png)
Part 5 :
The unbalanced chemical reaction is,
![C_4H_8+O_2\rightarrow CO_2+H_2O](/tpl/images/0685/4290/e011c.png)
In order to balance the chemical equation, the coefficient '6' put before the
, the coefficient '4' put before the
and the coefficient '4' put before the
then we get the balanced chemical equation.
The balanced chemical reaction will be,
![C_4H_8+6O_2\rightarrow 4CO_2+4H_2O](/tpl/images/0685/4290/628f9.png)
Part 6 :
The unbalanced chemical reaction is,
![(NH_4)_2SO_4+KOH\rightarrow K_2SO_4+NH_3+H_2O](/tpl/images/0685/4290/167da.png)
In order to balance the chemical equation, the coefficient '2' put before the
and
then we get the balanced chemical equation.
The balanced chemical reaction will be,
![(NH_4)_2SO_4+2KOH\rightarrow K_2SO_4+2NH_3+2H_2O](/tpl/images/0685/4290/4469c.png)
Part 7 :
The unbalanced chemical reaction is,
![C_2H_2+O_2\rightarrow CO_2+H_2O](/tpl/images/0685/4290/ff093.png)
In order to balance the chemical equation,the coefficient '2' put before the
, the coefficient '5' put before the
, the coefficient '4' put before the
and the coefficient '2' put before the
then we get the balanced chemical equation.
The balanced chemical reaction will be,
![2C_2H_2+5O_2\rightarrow 4CO_2+2H_2O](/tpl/images/0685/4290/6121d.png)
Part 8 :
The unbalanced chemical reaction is,
![H_3PO_4+Mg(OH)_2\rightarrow Mg_3(PO_4)_2+H_2O](/tpl/images/0685/4290/f386f.png)
In order to balance the chemical equation,the coefficient '2' put before the
, the coefficient '3' put before the
and the coefficient '6' put before the
then we get the balanced chemical equation.
The balanced chemical reaction will be,
![2H_3PO_4+3Mg(OH)_2\rightarrow Mg_3(PO_4)_2+6H_2O](/tpl/images/0685/4290/b5c63.png)
Part 9 :
The unbalanced chemical reaction is,
![Al(NO_3)_3+NaOH\rightarrow NaNO_3+Al(OH)_3](/tpl/images/0685/4290/5ecb3.png)
In order to balance the chemical equation,the coefficient '3' put before the
and the coefficient '3' put before the
then we get the balanced chemical equation.
The balanced chemical reaction will be,
![Al(NO_3)_3+3NaOH\rightarrow 3NaNO_3+Al(OH)_3](/tpl/images/0685/4290/00ea5.png)
Part 10 :
The unbalanced chemical reaction is,
![BaCl_2+Na_2SO_4\rightarrow BaSO_4+NaCl](/tpl/images/0685/4290/16ebd.png)
In order to balance the chemical equation,the coefficient '2' put before the
then we get the balanced chemical equation.
The balanced chemical reaction will be,
![BaCl_2+Na_2SO_4\rightarrow BaSO_4+2NaCl](/tpl/images/0685/4290/2033a.png)