when the volume of the gas is changed from 11.5cm³ to _cm³, the temperature will change from 415.0k to 200.0k

-be a crystalline solid

- be soluble in water

-conduct electricity

hope this : )

може ли да зареждате повече информация, моля

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.