Which compound is an Arrhenius base? (1 point)

Question

Responses

H3PO4
cap h sub 3 cap p cap o sub 4

HNO3
cap h cap n cap o sub 3

HClO
cap h cap c l cap o

Ca(OH)2

Answer 1

The compound that is an Arrhenius base is Ca(OH)2 (calcium hydroxide). An Arrhenius base is defined as a substance that increases the concentration of hydroxide ions (OH⁻) in aqueous solution, and Ca(OH)2 dissociates in water to produce hydroxide ions.

The other compounds listed are all acids.