Electrons are responsible for the transfer of charge.
Silver is Ag from the latin Argentum
Lead is Pb from the latin Plumbum
Answer:

Explanation:
Step 1. Determine the cell potential
<u> E°/V </u>
2×[Cr ⟶ Cr³⁺ + 3e⁻] 0.744 V
<u>3×[Cu²⁺ + 2e⁻ ⟶ Cu] </u> <u>0.3419 V
</u>
2Cr + 3Cu²⁺ ⟶ 3Cu + 2Cr³⁺ 1.086 V
Step 2. Calculate ΔG°

the percent yield is 95% and the excess ingredients are sugar and water but i don't know the amounts. pls let me know if you do :(