The balanced chemical equations are given below:
- [tex]Zn + 2HCl[/tex] → [tex]ZnCl_2[/tex] + H2.
- [tex]CH_4 + 2O_2[/tex] → [tex]CO_2 + 2H_2O[/tex].
- [tex]Fe + 3NaBr[/tex] → [tex]FeBr_3 + 3Na[/tex].
What do you mean by Chemical equation?
Chemical equations may be defined as an illustration of a chemical reaction by using symbols and the amount of substance used in the reactant to form a desirable product.
In the first reaction, two atoms of hydrogen are there on the product side while only one is there is the reactant side, so to balance them, you put 2HCl, the reaction is balanced now.
In the second reaction, four atoms of hydrogen are there on the reactant side while only two are on the product side, so to balance them you put 2H2O on the product side, now balance the oxygen atom and put 2O2 on the reactant side. The reaction is balanced now.
In the third reaction, bromine has three atoms on the product side, to balance them you need to put 3NaBr on the reactant side, now to balance sodium atoms put 3Na on the product side. The reaction is now balanced now.
The principle of the law of conservation of mass states that mass is neither be created nor destroyed in chemical reactions.
Therefore, the balanced chemical reactions are described above.
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