Its strontium and oxygen.
You didn’t post the whole question :/
Answer:
Iron + copper(II) sulphate → iron sulphate + copper
Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)
copper + silver nitrate → copper nitrate + silver
Cu (s) + 2AgNO3 (aq) → Cu(NO3)2 (aq) + 2Ag (s)
We can’t answer this question without any information. There is no explanation of the lab, nor is there any data.
Answer:
0.512^ is probably the answer
