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Which of the following is a balanced chemical equation?

MgF2 + Li2CO3 ⟶ MgCO3 + LiF CH4 + 2O2 ⟶ CO2 + H 2Al + 6HCl ⟶ 3H2 + AlCl3 P4 + 3O2 ⟶ 2P2O3

User Laureen
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2 Answers

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The balanced chemical equation is P4+3O2--> 2P2O3
User Ptc
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3 votes

Answer : The correct option is,


P_4+3O_2\rightarrow 2P_2O_3

Explanation :

Balanced chemical reaction : It is defined as the number of atoms of individual elements present on reactant side must be equal to the product side.

The given unbalanced chemical reaction is,


MgF_2+Li_2CO_3\rightarrow MgCO_3+LiF


CH_4+2O_2\rightarrow CO_2+H_2


2Al+6HCl\rightarrow 3H_2+AlCl_3

These chemical reactions are the unbalanced reactions because in this reaction, the number of atoms of individual elements present on reactant side are not equal to the product side.

Thus, the balanced chemical reaction will be,


P_4+3O_2\rightarrow 2P_2O_3

This chemical reaction is a balanced chemical reaction because in this reaction, the number of atoms of individual elements present on reactant side are equal to the product side.

User Redcayuga
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