Respuesta :

In H2CO, C is bonded to H, H and O. Write down the valence electrons of each element. 2 H = 1x 2 = 2. C= 4 O = 6 Total 12 
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In H2CO, C is bonded to H, H and O.  Write down the valence electrons of each element.2 H = 1x 2 = 2.C= 4O = 6Total: 12