Question

what is chemical equation ? why is it necessary to balance an equation

Answer 1

Heya!!Here is your answer friend ⤵⤵
↔↔↔↔↔↔↔↔↔↔↔↔↔↔


⏪Chemical Equation : The symbolic representation of the elements and compounds taking part in a chemical reaction.

⏪The LHS of an equation shows the reactant and the RHS shows the products formed .

For example ,

Magnesium + Oxygen ------------Magnesium oxide .

This reaction can be represented in the form of equation as ,

Mg + O2 ----------MgO.

↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔

↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔


⏪Balanced Chemical equation : An equation which has the same number of atoms of reactant and products .


➡Need for Balancing : balancing of an equation is necessary in order to go along the accordance of LAW OF CONSERVATION OF MASS. This law states that mass can be neither created nor destroyed in A chemical reaction. This means that

Mass of Reactant = Mass of products .


↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔

⏪Now let us balance the above mentioned chemical equation,,


Mg + O2 -----------MgO.

Balanced eq,


2 Mg + O2-----------2 MgO.



↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔

↔↔↔↔↔↔↔↔↔




Hope it helps you ✌✌☺☺

Answer 2

Answer:

Explanation:

The chemical equation needs to be balanced so that it follows the law of conservation of mass. A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side. Balancing chemical equations is a process of trial and error.