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Question
Write the steps in deducing the chemical formulae of the following compound.
Aluminium hydroxide
Solution
Aluminium hydroxide:
The Symbols and Valencies of Aluminium and Hydroxide.
| Symbol | Al | OH |
| Valency | 3 | 1 |
Cross-multiply the valencies
The chemical formula of Aluminium hydroxide is Al(OH)3.
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