Draw Lewis structures of the following molecules and ions: $H_2S$,$SiCl_4$,$BeF_2$,$CO_3^{2-}$,$HCOOH$.

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(N/A) The Lewis structures represent the valence electrons of atoms in a molecule or ion. The structures are as follows:
Name / FormulaLewis Structure
Hydrogen sulphide $(H_2S)$$H:\ddot{S}:H$
Silicon tetrachloride $(SiCl_4)$$\ddot{Cl}:\ddot{Si}:\ddot{Cl}$ (with $Cl$ atoms at four corners)
Beryllium fluoride $(BeF_2)$$:\ddot{F}:Be:\ddot{F}:$
Carbonate ion $(CO_3^{2-})$$[ :\ddot{O}:\ddot{C}:\ddot{O}: ]^{2-}$ (with one double bond to $O$)
Formic acid $(HCOOH)$$H:\ddot{C}:\ddot{O}:H$ (with a double bonded $O$ on $C$)

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