The active agent in many hair bleaches is hydrogen peroxide. The amount of H2O2 in 14.8 g of hair bleach was determined by titration with a standard potassium permanganate solution: 2MnO4-(aq) 5H2O2(aq) 6H (aq) -> 5O2(g) Mn2 (aq) 8H2O(l) If 43.2 mL of 0.105 M KMnO4 was needed to reach the endpoint, what the mass % of H2O2 in the sample of hair bleach

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.  

the answer is symmetrical : )