seriosly seriosly 10-03-2024 Chemistry contestada which equation is not a possibility 1. Zn + 2HCl → ZnCh + H2 2. 2K + CaCl → 2K1 + Ca 3. Cu + 2 AgNO3 → Cu(NO3)2 + 2 Ag 4. Cu +РЬ(NO3)2 → Cu(NO3)2 + Pb