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30-12-2015
Chemistry

contestada

Which compound contains both ionic and covalent
bonds?
(1) CaCO3 (3) MgF2
(2) PCl3 (4) CH2O

Respuesta :

30-12-2015

(1) CaCO3 is your answer. The positive ion is [tex]\text{Ca}^{2+[/tex] and the negative radical ion is [tex]\text{CO}_3^{-}[/tex]. There exists covalent bonds between the carbon and oxygen atoms in the [tex]\text{CO}_3^{-}[/tex].

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