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Given the equation:
HCl(g) + H2O(l)--> X(aq) + Cl--(aq)
Which ion is represented by X?
(1) hydroxide (3) hypochlorite
(2) hydronium (4) perchlorate

Sagot :

X will be hydronium (H3O)

Answer: The correct answer is Option 2.

Explanation:

For the given options:

Option 1: Hydroxide ion

The chemical formula for this ion is [tex]OH^-[/tex]

Option 2: Hydronium ion

The chemical formula for this ion is [tex]H_3O^+[/tex]

Option 3: Hypochlorite ion

The chemical formula for this ion is [tex]ClO^-[/tex]

Option 4: Perchlorate ion

The chemical formula for this ion is [tex]ClO_4^-[/tex]

For the given chemical reaction:

[tex]HCl(g)+H_2O(l)\rightarrow H_3O^+(aq.)+Cl-(aq.)[/tex]

The ion represented by X is hydronium ion.

Hence, the correct answer is Option 2.