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How can we solve the chemical equations?
A chemical equation shows the starting compound(s)—the reactants—on the left and the final compound(s)—the products—on the right, separated by an arrow. In a balanced chemical equation, the numbers of atoms of each element and the total charge are the same on both sides of the equation.
Balanced Chemical Equation: A balanced chemical equation has number atoms of each element equal on both left and right sides of the reaction.
In order to balance chemical equations, one has to balance all the atoms on the left and right side of the arrow.
For example: Mg + H2SO4 --> MgSO4 + H2
left side : Mg =1 right side of arrow: Mg=1
H =2 H=2
S = 1 S=1
O =4 O=4
As you can see that the elements on both left and right side have equal no. of atoms, therefore the equation is balanced.
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