(b) once the ionic solid has dissolved, the anion that is formed is able to react as a base, with water as the acid. write the net acid-base reaction that occurs when dissolved nac2h3o2 reacts with water. (use the lowest possible coefficients. omit states-of-matter in your answer.)
(e) write the net acid-base reaction that occurs when hc2h3o2 is added to water.

hc2h3o2 + h2o → h3o+ + c2h3o2-
correct.
(f) what is the relative ka value for this reaction?
ka < < 1
ka ≈ 1
ka > > 1correct: your answer is correct.
(g) which species are present in the greatest concentration? (select all that apply.) --i need b and g
weak acid molecules
hydronium ions
water molecules
conjugate base ions

b C₂H₃O₂⁻ + H₂O ⇄ HC₂H₃O₂ + OH⁻

e HC₂H₃O₂ + H₂O ⇄ H₃O⁺ + C₂H₃O₂⁻

f ka<<1

g. Weak acid molecules and water molecules

Explanation:

The water molecule could act as a base and as an acid, a molecule that have this property is called as amphoteric.

b The salt NaC₂H₃O₂ is dissolved in water as Na⁺ and C₂H₃O₂⁻. The reaction of the anion with water is:

C₂H₃O₂⁻ + H₂O ⇄ HC₂H₃O₂ + OH⁻

Where the C₂H₃O₂⁻ is the base and water is the acid.

e. The reaction of HC₂H₃O₂ (acid) with water (base), produce:

HC₂H₃O₂ + H₂O ⇄ H₃O⁺ + C₂H₃O₂⁻

f. As the acetic acid (HC₂H₃O₂) is a week acid, the dissociation in C₂H₃O₂⁻ is not complete, that means that ka<<1

g. The ka for this reaction is 1,8x10⁻⁵, that means that there are more weak acid molecules (HC₂H₃O₂) than conjugate base ions. Also, the water molecules will be in higher proportion than hydronium ions.

I hope it helps!

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.