The reaction of electrolytic water shows that the essence of chemical reaction is.

The reaction of electrolytic water shows that the essence of chemical reaction is.

2H2O=2H2+O2
Conservation of mass conservation of element species and number
The type and number of atoms remain the same

2H2O=2H2+O2
Mass conservation element species number conservation
The type and number of atoms remain the same

In the experiment of electrolytic water, why is it said that before and after the chemical reaction, the type of elements remains unchanged In the experiment of electrolytic water, why is it said that before and after the chemical reaction, the type of element remains the same Why does the type of element remain the same before and after the chemical reaction

All chemical reaction elements don't change, follow the balance of elements, only nuclear reaction elements change,

All chemical reaction elements don't change, follow the balance of elements, only the nuclear reaction elements do.