Al+ O2~Al2O3 1.)6 moles of Al react with 7 moles of O2. What is the limiting reactant? What is in excess?
2.)2.5 moles of Al reacts with 1.5 moles of O2. What is the limiting reactant? What is in excess?
3)9 moles of Al react with 11 moles of O2. How many grams of excess do you have?
4.)Using the liimiting reactant determined in number 3, how many grams of product are formed

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.