Question

give one example of balancing chemical equation

Answer 1

H2+ O2---> H2O.
The hydrogen are balanced, but the oxygens are not. We have to get both balanced. We put a two in front of thewater and this balances the oxygen.
H2+ O2---> 2H2O.
However, this causes the hydrogen to become unbalanced. To fix this, we place a two in front of the hydrogen on the left side.
2H2+ O2---> 2H2O.
This balances the equation

Answer 2

Let us balance H2+O2→H2O

Step 1st:- Check the atoms on the LHS and RHS.There are 2 H atoms on LHS and RHS.So H is balanced but Oxygen is unbalanced i.e there are 2 atoms of oxygen on LHS and 1 atom on RHS so we have to multiply RHS by 2
New equation:-H2+O2→2H2O

Step 2nd:-Now Hydrogen is unbalanced so multiply LHS hydrogen atom by two.
New equation:-2H2+O2→2H2O

Step 3rd:-Now LHS and RHS, noth are balanced

So balanced equation is :-2H2+O2→2H2O