Identify the conjugate base in the equation below CH3COOH + H2O - H30* + CH3COO-
O a. CH3COO
O b. H20
O c. H30+
O d. CH3COOH

a. CH3COO⁻.

Explanation:

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In this case, according to the given ionization reaction of acetic acid:

CH₃COOH + H₂O --> H₃O⁺ + CH₃COO⁻

Whereas we can evidence how the CH₃COOH is the acid whereas H₂O the base, as the former donates H ions to the latter, which accepts them; we can infer that H₃O⁺ is the conjugate acid, resulting from the base and the a. CH3COO⁻ is the conjugate base, resulting from the acid.

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the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

it is the most commonly accepted one