Which of the following is not a balanced chemical equation?
Which of the following is not a balanced chemical equation?
The correct option is B 2KClO3(l) ⇢ KCl(s) +3O2(g)
The Correct option is (b)
2KClO3(l) ⇢ KCl(s) +3O2(g)
To check if the chemical reaction is balanced or not
Check the number of atoms of reactant and the number of atoms of the product
If they are equal then the reaction is called a balanced chemical reaction
In reaction, 2KClO3(l) ⇢ KCl(s) +3O2(g)
On the reactant side,
The number of K (potassium) atoms is equal to 2
The number of Cl (chlorine) atoms is equal to 2
The number of O (oxygen) atoms is equal to 6
On the product side,
The number of K (potassium) atoms is equal to 1
The number of Cl (chlorine) atoms is equal to 1
The number of O (oxygen) atoms is equal to 6
The number of atoms on the reactant side is not equal to the reactant on the side.
Hence the reaction is not a balanced chemical reaction.
Incorrect options
Option (a)
CaCO3 (s)⇢ CaO(s) +CO2(g)
On the reactant side,
The number of Ca (Calcium) atoms is equal to 1
The number of C (carbon) atoms is equal to 1
The number of O (oxygen) atoms is equal to 3
On the product side,
The number of Ca (Calcium) atoms is equal to 1
The number of C (carbon) atoms is equal to 1
The number of O (oxygen) atoms is equal to 3
The number of atoms on the reactant side is equal to the reactant on the side.
Hence the reaction is a balanced chemical reaction.
Option (c)
SO2(g)+ H2O(l) ⇢ H2SO3(l)
On the reactant side,
The number of S (Sulphur) atoms is equal to 1
The number of H (Hydrogen) atoms is equal to 2
The number of O (oxygen) atoms is equal to 3
On the product side,
The number of S (Sulphur) atoms is equal to 1
The number of H (Hydrogen) atoms is equal to 2
The number of O (oxygen) atoms is equal to 3
The number of atoms on the reactant side is equal to the reactant on the side.
Hence the reaction is a balanced chemical reaction.
Option (d)
CO2 (g)+ H2O (l)⇢ H2CO3 (s)
On the reactant side,
The number of C (Carbon) atoms is equal to 1
The number of H (Hydrogen) atoms is equal to 2
The number of O (oxygen) atoms is equal to 3
On the product side,
The number of C (Carbon) atoms is equal to 1
The number of H (Hydrogen) atoms is equal to 2
The number of O (oxygen) atoms is equal to 3
The number of atoms on the reactant side is equal to the reactant on the side.
Hence the reaction is a balanced chemical reaction.
2KClO3(l) ⇢ KCl(s) +3O2(g)
The Correct option is (b)
2KClO3(l) ⇢ KCl(s) +3O2(g)
To check if the chemical reaction is balanced or not
Check the number of atoms of reactant and the number of atoms of the product
If they are equal then the reaction is called a balanced chemical reaction
In reaction, 2KClO3(l) ⇢ KCl(s) +3O2(g)
On the reactant side,
The number of K (potassium) atoms is equal to 2
The number of Cl (chlorine) atoms is equal to 2
The number of O (oxygen) atoms is equal to 6
On the product side,
The number of K (potassium) atoms is equal to 1
The number of Cl (chlorine) atoms is equal to 1
The number of O (oxygen) atoms is equal to 6
The number of atoms on the reactant side is not equal to the reactant on the side.
Hence the reaction is not a balanced chemical reaction.
Incorrect options
Option (a)
CaCO3 (s)⇢ CaO(s) +CO2(g)
On the reactant side,
The number of Ca (Calcium) atoms is equal to 1
The number of C (carbon) atoms is equal to 1
The number of O (oxygen) atoms is equal to 3
On the product side,
The number of Ca (Calcium) atoms is equal to 1
The number of C (carbon) atoms is equal to 1
The number of O (oxygen) atoms is equal to 3
The number of atoms on the reactant side is equal to the reactant on the side.
Hence the reaction is a balanced chemical reaction.
Option (c)
SO2(g)+ H2O(l) ⇢ H2SO3(l)
On the reactant side,
The number of S (Sulphur) atoms is equal to 1
The number of H (Hydrogen) atoms is equal to 2
The number of O (oxygen) atoms is equal to 3
On the product side,
The number of S (Sulphur) atoms is equal to 1
The number of H (Hydrogen) atoms is equal to 2
The number of O (oxygen) atoms is equal to 3
The number of atoms on the reactant side is equal to the reactant on the side.
Hence the reaction is a balanced chemical reaction.
Option (d)
CO2 (g)+ H2O (l)⇢ H2CO3 (s)
On the reactant side,
The number of C (Carbon) atoms is equal to 1
The number of H (Hydrogen) atoms is equal to 2
The number of O (oxygen) atoms is equal to 3
On the product side,
The number of C (Carbon) atoms is equal to 1
The number of H (Hydrogen) atoms is equal to 2
The number of O (oxygen) atoms is equal to 3
The number of atoms on the reactant side is equal to the reactant on the side.
Hence the reaction is a balanced chemical reaction.
