Write the balanced equation for the following chemical reactions.
(i) Hydrogen + Chlorine → Hydrogen chloride
Answer
(i) Hydrogen + Chlorine → Hydrogen chloride
The skeletal chemical equation of the above reaction is
H 2 + Cl → HCl
|
Element Name |
No of Atoms in Reactant |
No of Atoms in Product |
|
Hydrogen |
2 |
1 |
|
Chlorine |
1 |
1 |
- Number of atoms of Hydrogen in reactants ≠ number of atoms of Hydrogen in products
To balance number of Hydrogen,
We multiply the products by 2
The chemical equation becomes
H 2 + Cl → 2 HCl
|
Element Name |
No of Atoms in Reactant |
No of Atoms in Product |
|
Hydrogen |
2 |
2 |
|
Chlorine |
1 |
2 |
- Now,
Number of atoms of Hydrogen in reactants = number of atoms of Hydrogen in products
But, Number of atoms of Chlorine in reactants ≠ number of atoms of Chlorine in products
To balance number of Chlorine,
We multiply the Cl atom in reactants by 2
The chemical equation becomes
H 2 + 2 Cl → 2 HCl
Now,
|
Element Name |
No of Atoms in Reactant |
No of Atoms in Product |
|
Hydrogen |
2 |
2 |
|
Chlorine |
2 |
2 |
Now, all the elements are balanced and the balanced equation is
H 2 + 2 Cl → 2 HCl
H 2 + 2 Cl → 2 HCl
