| Ag^1+ | silver |
| Au^3+ | gold(III)/auric |
| Cr^3+ | chromium(III)/chromic |
| Cu^1+ | copper(I)/cuprous |
| H^1- | hydride |
| Hg^2+ | mercury(II)/mercuric |
| Mn^3+ | manganese(III) |
| Ni^3+ | nickel(III)/nickelic |
Drag corresponding items onto each other to make them disappear.
Start Game