Question

what is balanced chemical equation ? Why should a chemical equation be balanced? Give an example for balanced chemical equation​

Answer 1

Answer:

when a number of reactant atoms are equal to the number of product atoms then we cal this chemical equation as balanced chemical equation.

according to law of conservation of,mass of reactants is equal to mass of products,we have to balance a chemical equation

2Mg+O2 gives 2MgO

Answer 2

Answer:

balanced chemical equation is a form of chemical equation in which the atoms are equal on both side of reactants and product side

We should balance the chemical equation because to fulfill the law of conservation of mass which you read in class 9th

H2O ————— H2 +O2 this is not a balanced chemical equation

but the correct one is

2H2O ————— 2H2 +O2

here you can see that both side atoms are equal

hope this will help you