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Identify each of the following as forming only ions, some ions, or no ions.
a. NaOH (aq)
b. H₂O (1)
c. HF (aq)
d. HBr (aq)
e. Na₂SO₄ (aq)

Sagot :

Answer:

Let's classify each substance based on whether they form ions in aqueous solution:

a. NaOH (aq): Sodium hydroxide dissociates completely into ions in aqueous solution.

Forms ions: All ions (Na⁺ and OH⁻)

b. H₂O (l): Water itself does not ionize in pure liquid form (though it can ionize to a very small extent in a process called autoionization).

Forms ions: No ions

c. HF (aq): Hydrofluoric acid partially dissociates into ions in aqueous solution.

Forms ions: Some ions (H⁺ and F⁻)

d. HBr (aq): Hydrobromic acid dissociates completely into ions in aqueous solution.

Forms ions: All ions (H⁺ and Br⁻)

e. Na₂SO₄ (aq): Sodium sulfate dissociates completely into ions in aqueous solution.

Forms ions: All ions (Na⁺, SO₄²⁻)

Summary of ion formation:

a. NaOH (aq): All ions (Na⁺, OH⁻)

b. H₂O (l): No ions

c. HF (aq): Some ions (H⁺, F⁻)

d. HBr (aq): All ions (H⁺, Br⁻)

e. Na₂SO₄ (aq): All ions (Na⁺, SO₄²⁻)

Explanation: