Which choice contains both ionic and covalent bonds? I actually have t

QUESTION

Which choice contains both ionic and covalent bonds? I actually have the answer, but I want to understand why?I. H3O+ II. Mg(OH)2 III. SF6 IV. Na2O V. K2CO3(1) I only (2) I & 2 Only (3) I & III Only (4) II & V only (5) I & V onlyLook, the answer is (4) II & V, but can you explain¦
(4) II and V is correct. note: ionic bond involves metal-nonmetal bonding. covalent bond involves nonmetal-nonmetal bonding. in Mg(OH)2, the bonding between metal Mg and nonmetal moiety OH is ionic bond. the bonding between two nonmetal elements O and H are covalent bond. same thing for¦

. the bonding between metal K and nonmetal part CO3 is ionic bond, the bonding between nonmetal elements C and O are covalent bonds. H3O , SF6 only involve covalent bonds Na2O only has ionic bonds

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