Answer:
The number of atoms on both sides of the expression is not balanced
Explanation:
Stated equation:
KClO₃ → KCl + O₂
The equation above does not obey the law of conservation of mass because the atoms on both sides of the expression are not the same.
The law of conservation of mass states that "in a chemical reaction, atoms are neither created nor destroyed, but are transformed by combining with one another";
Number of atoms
Elements Left hand side Right hand side
K 1 1
Cl 1 1
O 3 2
We see that the number of oxygen on both sides of the expression differs.
