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Which polyatomic ion is found in the compound represented by the formula NaHCO3?
(1) acetate (3) hydrogen sulfate
(2) hydrogen carbonate (4) oxalate

Respuesta :

taskmasters
The correct answer is option 2. Hydrogen carbonate is the polyatomic ion in the compound given. A polyatomic ion is a charged species composed of covalently bonded atoms. Hydrogen carbonate, also known as bicarbonate, is  a polyatomic ion with the charge of -1.

Answer: The correct option is 2.

Explanation: Polyatomic ions are defined as the ions in which two or more elements are covalently bonded to act as a single unit. They always carry some charge.

Examples of polyatomic ions are: [tex]OH^-[/tex] known as hydroxide ion, [tex]SO_4^{2-}[/tex] known as sulfate ion

We are given a compound [tex]NaHCO_3[/tex] having 2 ions which are [tex]Na^+[/tex] and [tex]HCO_3^-[/tex]. these ions are named as sodium ions and hydrogen carbonate ions.

Therefore, the correct option is 2.

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