Write the chemical formula of sodium carbonate.

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Na2CO3

NaCO

Na2CO

NaCO3

answer is A.

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Detailed Solution

●        Sodium has 11 electrons total inside the atom; its arrangement according to the octet rule is 2,8,1.
●        One outer electron of sodium created sodium ion Na^+ ions.
●        Now Sodium ions combine with the Carbonate and form Sodium Carbonate in which 2 Sodium ions and 3 Carbonate ions contribute.

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