Why Do We Need To Balance A Chemical Equation Class 10
Camila Farah
A chemical equation needs to be balanced because a chemical reaction is just a rearrangement of atoms.
Need for balancing a chemical equation. Atoms themselves are neither created nor destroyed during the course of a chemical reaction. Remember that the balanced equation s coefficients state the stoichiometric factor or mole ratio of reactants and products. Therefore chemical equation must be balanced in each and every chemical reaction.
The balanced equation must now be used to convert moles of fe s to moles of h 2 g. It states that matter can neither be created nor be destroyed. Chemical equations need to be balanced in order to satisfy the law of conservation of matter which states that in a closed system matter is neither created nor destroyed. Now we count the atoms of each element on both sides of the equation to the check the correctness of the equation 3fe 4h 2 o fe 3 o 4 4h 2 the number of atoms of each element on both sides is now equal therefore this equation is now a balanced equation.
In other words have the same number of each kind of atom. The chemical equation needs to be balanced to follow the law of conservation of mass. There are 2 hydrogen atoms and 1 oxygen atom on the right so you would write h 2 and o 1 under the right side. 3 74 x 10 5 mol fe s 1mol h 2 g 1mol fe s 3 74 x 10 5 mol h 2 g step 5.
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Balancing equations ul li the law of conservation of mass states that in a chemical reaction the quantity or amount of each element does not change. To balance the equation you ll need to add coefficients to change the number of atoms on one side to match the other.
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