| Particle | Mass Number (A) | Atomic Number (Z) | Protons | Neutrons | Electrons |
| O | 8 | 8 | |||
| Al | 27 | 13 | |||
| 35 | 17 | ||||
| $\mathrm{Mg}^{2+}$ | 12 | 10 |
| Particle | Mass Number (A) | Atomic Number (Z) | Protons | Neutrons | Electrons |
| O | 16 | 8 | 8 | 8 | 8 |
| Al | 27 | 13 | 13 | 14 | 13 |
| $\mathrm{Cl}^{-}$ | 35 | 17 | 17 | 18 | 18 |
| $\mathrm{Mg}^{2+}$ | 24 | 12 | 12 | 12 | 10 |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Reactants | Products |
| $Zn_{(s)} +$ ————$_{(aq)}$ | ————$-_{(aq)} + Cu_{(s)}$ |
| $Cu_{(s)} + 2Ag^+_{(aq)}$ | —————–$ +$————– |
| ———– $+$ ————- | $Co _{( aq )}^{2+}+ Ni _{( s )}$ |
