The searching of chemicals should not be done in the classroom, it should be done in the laboratories of the schools.
A chemical is a type of stuff with a predictable chemical makeup and behavior.
Physical separation procedures, such as breaking chemical bonds, cannot separate a chemical entity into its constituent parts, according to certain texts.
The searching of chemicals should be done into the laboratories but not in the classrooms because it can harm the health of the another class's students if it's done in the classroom.
Therefore, the chemical searching process cannot be done in the classroom.
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