You've devised a hydrogen thermometer where you propose that the density, alone, could be used to determine the temperature. Find the temperature in celsius based on this premise, if the density of hydrogen gas is found to be 0.09 g/L at 1.00atm.

personal, she chose to do it.

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.  

diaria maybe go see a doctor about that

4d^55s^1 ( third choice)