write the chemical formula of any 5 compunds by writing down the elements radicals valencies
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Answer:
The chemical formula of a compound is a symbolic representation of its chemical composition. Chemical formulae provide insight into the elements that constitute the molecules of a compound and also the ratio in which the atoms of these elements combine to form such molecules. For example, the chemical formula of water, which is H2O, suggests that two hydrogen atoms combine with one oxygen atom to form one molecule of water.....
Answer:
The chemical formula of a compound is a symbolic representation of its composition. The chemical formulae of different compounds can be written easily. The chemical formula of the compound can be easily written using the valency. e.g the formula of aluminium sulphate is Al 2 (SO4 )3
. The valency of aluminium is 3 and that of sulphate is 2. Chemical formula is found by cross-multiplying the valencies of both the ions.
Write the symbols side by side, basic radical is written first and then acidic radical.
2. Write the valency of each atom on top of its symbol.
3. Divide the valency numbers by their highest common factor. Ignore the symbols of radicals. Interchange the valencies of the radicals.
4. Write the interchanged valency numbers to the lower right of the radicals. If the radical is a group of atoms and has a valency more than one, enclose it within brackets.