Answer:
7.53*10^23 atoms
Step-by-step explanation:
Using stoichiometry convert moles of silver to moles of copper. Based on the equation, for every 2 moles of silver, 1 mole of copper is produced.
Then, convert moles to atoms with Avogadro's number.
![2.5 mol Ag*(1 molCu)/(2molAg) *(6.022*10^(23) atoms)/(mol)](https://img.qammunity.org/2021/formulas/chemistry/high-school/vink91gi1iz63qlh4lxv3n8g8odglhoyzt.png)
Your answer should be 7.53*10^23 atoms.