Based on the complete and balanced reaction below, what is the charge for copper (Cu)?
You must provide two pieces of evidence to support your claim.
Look at the reaction below to answer the question. Remember that
copper (Cu) is a transition metal and it can have different possible
charges:
2NaCl + Cu(NO3)2 --> 2NaNO3 + CuCl2

C. 1s22s22p63s23p43d104s24p5

You would do 1500/4 and the answer is 375

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na

True is ur answer : )