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01-12-2019
Chemistry

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SvetkaChem SvetkaChem

01-12-2019

Answer:

b. 1 and 3

Explanation:

1. [tex]Na^{+} and \ Cl^{-}[/tex] .NaCL is formed by ions.

2. C6H12O6 has only covalent bonds.

3. (NH4)2CO3 is formed by ions [tex]NH_4^{+} \ and \ CO_{3}^{2-}[/tex].

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