write the molecular formula of all compound that can be formed by the combination of ions. Al3+
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Answer:
Compounds are formed by the combination of cation and anion.
On combining all the possible positive ions with negative ions, we get
CuCl
2
,CuSO
4
,NaCl,Na
2
SO
4
,FeCl
3
,Fe
2
(SO
4
)
3
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