Any number you want from 1 to infinity.
None!!!! What is ' h2o2 '??? If you mean ' H2O2' (Hydrogen Peroxide)/ Then there are 4 atoms/ Two hydrogen atoms and two oxygen atoms. The structure is ' H-O-O-H '. NB In chemical elemental symbols , Single letter symbols are ALWAYS a CAPITAL letter. This is the IUPAC/International recognised standard, and as shown in the Periodic Table. Hence hydrogen is 'H' , NOT 'h' , and oxygen is 'O' , NOT 'o'.
There are three elements in H202: hydrogen and oxygen.
Because peroxide will yield H202 upon reaction with acid while Dioxide will not yield H202 with acid
H2O2 is a COMPOUND. A compound is a molecule with atoms of different elemental present and in COMBINATION>
The meaning of H202?
Any reaction occur.
Hydrogen Peroxide (H202) is a compound.
Facebook Magnesium H202
H2O2 has an important role in the oxidative stress.
H2O2 is the formula for hydrogen peroxide.
The equivalent is 1,6.10e-15 moles.
H2O2 is not a chemical reaction, it is Hydrogen Peroxide.