Calculate the number of molecules in 15.7 mol carbon dioxide.

Hey there!

One mole has 6.022 x 10²³ molecules.

We have 15.7 moles, so multiply.

15.7 x 6.022 x 10²³ = 9.45 x 10²⁴

There are 9.45 x 10²⁴ molecules in 15.7 moles of carbon dioxide.

Hope this helps!

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.