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Java Games: Flashcards, matching, concentration, and word search. |
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| A | B |
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| NH4+ | Ammonium |
| Na+ | Sodium |
| K+ | Potassium |
| Ag+ | Silver |
| H+ | Hydrogen |
| Ca2+ | Calcium |
| Mg2+ | Magnesium |
| Cu2+ | Copper |
| Pb2+ | Lead |
| Fe2+ | Iron (II) |
| Ba2+ | Barium |
| Zn2+ | Zinc |
| Al3+ | Aluminium |
| Fe3+ | Iron (III) |
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Otago Boys' High School |
| Dunedin |
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