An aluminum sample has a mass of 80.1 g and a density of 2.70g/cm3 . according to the date to what number of significant figures should the calculate volume of the aluminum sample be expressed?

give me abc and i will get it for u.

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.