The sulphate ion is sp3 hybridized meaning it has a tetrahedral shape(triangular pyramid, base and 3 sides). The sulfur sits in the middle of this pyramid with 4 oxygens at the 4 points. In the Lewis...
sucio in English means wet.1.it is wet outside to day because it's raining outside.
Like hexane model here.
the molecular structure would look like
http://www.strings.ph.qmul.ac.uk/~ramgosk/atom-with-electrons.gif
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