Question

how to balance the chemical equation explain with examples

Answer 1

h2 +02 = h20
here two hydrogen molecules are there but only one molecule of oxygen . so we should make it equal by balancing
= h2 +o2 = h20
= h2 + o2 = 2h20 ( for making the oxygen mole cule 2 we are adding the 2)
 now the hydrogen becomes 4 molecules so we should balance it on the left side
= h4 + o2 = 2h20 
thus the equation is balanced

Answer 2

1. Write the unbalanced equation to show the reactants and products.
2. Write down how many atoms of each element there are on each side of the reaction arrow.
3. Add coefficients (the numbers in front of the formulas) so the number of atoms of each element is the same on both sides of the equation.