Lucy849idn
Answered

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Which two substances are covalent compounds?
(1) C6H12O6(s) and KI(s)
(2) C6H12O(s) and HCl(g)
(3) KI(s) and NaCl(s)
(4) NaCl(s) and HCl(g)

Sagot :

C6H12O (s) and HCI (g) are covalent compounds. Option 3) is an ionic compound. So 2) Is right. 
Dejanrasidn

Answer is: (2) C6H12O(s) and HCl(g).

Covalent bond is bond between nonmetals.

Carbon, hydrogen, chlorine and oxygen are nonmetals.

Hydrogen chloride (HCl) has polar covalent bond between hydrogen and chlorine.

Potassium iodide (KI) and sodium chloride (NaCl) are ionic compounds.

Ionic bond is the electrostatic attraction between oppositely charged ions (cations and anions).

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