Balancing of
chemical equation
For the
quantative study a chemical reaction a balance chemical equation is necessary.Following
are the steps for developing of a balancing of chemical equation
Chemical change
description
Powdery
magnesium oxide magnesium is produced when Magnesium strip burns in oxygen gas. Converting this description into a balanced equation
completes in following steps
Step number 1:-
In this step Translation of the statement done.
The
species present before
the change, called
reactants( in this case magnesium and Oxygen gas), are kept on the left side of a arrow, the arrow points to the specie obtained during the
change, called products ( in this case magnesium oxide).
Step number number 2 :- In this step balancing of atoms is done.
Atoms of each element on the left and the right of the arrow should be equal .While balancing atoms of one
element should be balanced at a time. Balance the complex substance first and
then simple one.
Oxygen
balancing
In the above
equation MgO is the most complex substance,
to balance oxygen atoms on both sides well place 2 as coefficient before MgO because reactant side has two oxygen while
product has one oxygen.
Magnesium
balancing
The above equation shows that there
are 2 atoms of Mg on the right side of
arrow while one atom of Mg on the left side ,so a coefficient 2 is put before
Mg on the left side of of the above equation.
Finally Checking atoms of all the
elements is done.
Step number 3 :- In this step the state of species involved in the
reaction is Specified.
In the above reaction Mg and MgO both are in solid state that’s why
(s) has been used for them while oxygen is in the gaseous state so (g) has been
used for it.
Balancing of chemical equation
Reviewed by chemistry and Health
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1:19 PM
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