According to the law of conservation of matter, which chemical equation represents a possible chemical reaction?
a. 2na cl2 nacl
b. h2o2 h2o o2
c. 6co2 h2o energy c6h12o6 6o2
d. c2h4o2 nahco3 nac2h3o2 h2o co2

Answer : The possible chemical reaction is, (d)

Explanation :

Law of conservation of matter : It states that matter can neither be created nor be destroyed but it can only be transformed from one form to another form.

The balanced chemical reaction always follow the law of conservation of matter.

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

(a) The given chemical reaction is:

This reaction is an unbalanced chemical reaction in which number of atoms of sodium and chlorine are not equal on the both side of the reaction. So, this reaction will not obey the law of conservation of matter.

(b) The given chemical reaction is:

This reaction is an unbalanced chemical reaction in which number of atoms of oxygen are not equal on the both side of the reaction. So, this reaction will not obey the law of conservation of matter.

(c) The given chemical reaction is:

This reaction is an unbalanced chemical reaction in which number of atoms of hydrogen and oxygen are not equal on the both side of the reaction. So, this reaction will not obey the law of conservation of matter.

(d) The given chemical reaction is:

This reaction is a balanced chemical reaction in which number of atoms of carbon, hydrogen, sodium and oxygen are equal on the both side of the reaction. So, this reaction obey the law of conservation of matter.

Hence, the possible chemical reaction is, (d)

the correct answer would be d. hope this !