Respuesta :
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.
In a closed all mass is conserved. tThe Conservation of mass explains the balanced chemical equation.
Conservation of mass:
This law states that in a closed system the mass of the total mass of all reactants is equal to the total mass of products in a reaction.
For example -
[tex]\bold {CH_4 + 2O_2 \rightarrow2 H_2O +CO_2}[/tex]
1 mole of methane reacts with 2 moles of oxygen to produce 2 moles of water and 1 mole of Carbon dioxide.
Means 3 moles or reactant 3 moles of products.
Therefore, the Conservation of mass explains the balanced chemical equation.
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