Q3 of 16 Page 57

Write the steps in deducing the chemical formulae of the following compounds.

Aluminium hydroxide

Aluminum Hydroxide-

Formula: -Al(OH)3


Step 1:


To write the symbols of the radicals. (Basic radical on the left.)


Al OH


Step 2: To write the valency below the respective radical.


Al OH


3 1


Step 3: To cross-multiply as shown by the arrows the number of the radicals.



Step 4 To write down the chemical formula of the compound. Al(OH)3


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