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irakobra [83]
3 years ago
7

Which of the following contains BOTH ionic and covalent bonds? Which of the following contains BOTH ionic and covalent bonds? Ca

I2 COS BaSO4 SF6 None of the above contain both ionic and covalent bonds.
Chemistry
1 answer:
Marta_Voda [28]3 years ago
4 0

Answer:

BaSO₄

Explanation:

It is possible to know if a bond is ionic or covalent using the electronegativity of the atoms in the bond. If electronegativity difference is higher than 1.8, the bond is ionic, if doesn't, bond is covalent.

CaI₂ has the Ca-I bond where electronegativity of Ca and I are 1 and 2.66. Difference of electronegativity is 1.66 → <em>Bond is covalent.</em>

COS has the C-O and C-S bonds  where electronegativity of C, O and S are 2.55, 3.44 and 2.55. Difference of electronegativity are 0.89 and 0 → <em>Bonds are covalent.</em>

BaSO₄ has the Ba-O and O-S bonds  where electronegativity of Ba, O and S are 0.89, 3.44 and 2.55. Difference of electronegativity are 2.55 and 0.89 → <em>Bonds are ionic and covalent respectively</em><em>.</em>

SF₆ has the S-F bond where electronegativity of S and F are 2.55 and 3.98. Difference of electronegativity is 1.43 → <em>Bond is covalent.</em>

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