Chemical Equation
There are
two kinds of reactions. First is known as chemical reaction and second is known
as physical reaction. The process of writing the chemical equation in the form
of symbols and formulae is known as chemical equation. There are two sides of a
chemical equation. On the left side of a chemical equation, we write reactants
and on the right side of a chemical equation, we write products. In order to
separate the reactants and products, we use an arrow head. The tail of the
arrow is towards reactants and the head of the arrow is towards products. While
writing a chemical equation, we should make sure that number of atoms on the
reactant side should be equal to the number of atoms on the product side. An example
of chemical equation is given below;
Image
The above
example shows that when Hydrogen and Oxygen mixes up, they form water.
Types of chemical equations
There are
two types of chemical equations. First of known as balanced chemical equation
and second is known as unbalanced chemical equation.
1. Balanced chemical equation
A chemical equation which has same number of atoms on both sides of the
equation is known as a balanced chemical equation. In other words, in a
balanced chemical equation, the numbers of atoms on the reactant side are equal
to the numbers of atoms on the product side. In the following image, there is
an example of a balanced chemical equation.
The above equation shows that we have one Carbon atom, four Hydrogen
atoms and four Oxygen atoms on the reactant side. In a similar way, we have
also same number of atoms on the product side. Therefore, it is an example of a
balanced chemical equation.
2. Unbalanced chemical equation
A chemical equation in which numbers of atoms on both sides of the
equation are not same is known as an unbalanced chemical equation. In other
words, we can say that numbers of atoms on the reactant side are not equal to
the number of atoms on the product side. In the following image, there is an
example of an unbalanced chemical equation;
The above equation is an unbalanced chemical equation. Its reason is that
on the reactant side, there are four P atoms, eleven O atoms and two H atoms.
On the other hand, on the product side, there are three H atoms, one P atom and
four O atoms. As numbers of atoms on the reactant side are not equal to the
numbers of atoms on the product side, therefore, it is an unbalanced chemical
equation.
You can also read: How does ice floats on water?
You can also read: How does ice floats on water?
How to balance chemical equations
While
studying, we have to come across lots of unbalanced chemical equations.
Therefore, it is necessary for us to balance these chemical equations. In order
to balance these chemical equations, you will have to follow these essential
steps;
· In
the first step, you will have to write the given equation in its original form.
· In
the second step, you will have to note the number of atoms. For this reason,
you should note the number of atoms on each side of the equation. It means that
you should write the numbers of atoms on the reactant side on the left side of
the paper and numbers of atoms on the product side on the right side of the
equation.
· While
balancing the equation, you should get an idea either there is O and H atoms in
the equation or not. If there are H and O atoms in the equation, you should try
to balance these atoms at last.
· If
you have only one element to balance on the each side of the equation, it is
good because you can easily balance it. On the other hand, if you have to
balance more than one atom on each side of the equation, you should treat these
atoms simultaneously. It means that first of all, you should take one atom and
balance it on both sides of the equation. After balancing first atom, you
should move towards another atom. In a similar way, you should try to balance
all the atoms in your equation.
· While
balancing atoms on each side of the equation, you can use coefficients. For
example, if you have to put 3 as coefficient on one side of the equation and
total numbers of atoms become 6, you should also try to adjust such coefficient
on the other side of equation which makes the 6 same atoms.
· After
balancing all the other atoms, you should try to balance the H atoms by
following the same rule.
· At
the end, you will have to balance the O atoms.
If you
follow these simple steps, it will be easy to you to balance any kind of
chemical equation.
How to balance chemical equations with example
After
clearly understanding the rules to balance a chemical equation, we are in
position to balance any kind of unbalanced chemical equation. Here, we will
discuss how to balance a chemical equation by following these rules with the
help of an example.
· In
the first step, we write the given equation in its original form in the
following way.
· In
the second step, we note down all the numbers of atoms in each side of the chemical
equation in the following way;
· As
there are O and H atoms in this unbalanced equation, therefore, we will ignore
these atoms and try to balance these atoms at last.
· First
of all, we take P atom and try to balance it on both sides of the equation. As
there are four P atoms on the reactant side, therefore, if we want to balance
it on the product side, we will have to put coefficient four in the following
way;
· Now,
we have to balance H atoms. After putting coefficient 4 on the product side,
there are two H atoms on reactant side and twelve H atoms on the product side. Therefore,
we have to put coefficient 6 on the reactant side in the following way;
· At
the end, we have to balance O atoms. After putting these coefficients, we can
see that there are 16 Oxygen atoms on both sides of the equation. It means that
we don’t need to do anything to balance O atoms on both sides of the equation.
4 comments
Click here for commentsخرید هاست ارزان
ReplyWhat a fantabulous post this has been. Never seen this kind of useful post. I am grateful to you and expect more number of posts like these. Thank you very much. www.associateresourcesetm.com
Replygoogle.com
ReplyAll the contents you mentioned in post is too good and can be very useful. I will keep it in mind, thanks for sharing the information keep updating, looking forward for more posts.Thanks buy 5cl-adb-a
ReplyThanks for your feedback ConversionConversion EmoticonEmoticon