How many moles of zncl2 will be produced from 23.0g of zn, assuming cucl2 is available in excess?

= 0.408 moles

Explanation:

The equation for the reaction is;

Zn + CuCl2 → ZnCl2 + Cu

Given 23.0 g of zince

Moles of Zn = 23.0/65.38 g/mol

                   = 0.408 moles

From the equation;

1 mole of Zn produces 1 mole of ZnCl2

Therefore; the number of moles of ZnCl will also be;

  = 0.408 moles × 1

  = 0.408 moles

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.