er. You have to properly balance the equation before you can answer this question. A) 0.420 mol O2 B) 0.525 mol O2 C) 0.875 mol O2 D) 0.905 mol O2 E) 0.975 mol O2

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.