consider the reaction below.\nh₂po₄⁻ + h₂o → h₃o⁺ + hpo₄²⁻\nwhich of the following is a base - conjugate…

consider the reaction below.\nh₂po₄⁻ + h₂o → h₃o⁺ + hpo₄²⁻\nwhich of the following is a base - conjugate acid pair?\n○ h₂o and h₃o⁺\n○ h₂o and h₂po₄⁻\n○ h₂po₄⁻ and hpo₄²⁻\n○ h₂po₄⁻ and h₃o⁺

consider the reaction below.\nh₂po₄⁻ + h₂o → h₃o⁺ + hpo₄²⁻\nwhich of the following is a base - conjugate acid pair?\n○ h₂o and h₃o⁺\n○ h₂o and h₂po₄⁻\n○ h₂po₄⁻ and hpo₄²⁻\n○ h₂po₄⁻ and h₃o⁺

Answer

Brief Explanations:

In an acid - base reaction, a base - conjugate acid pair is related by the gain of a proton ($H^+$). Water ($H_2O$) acts as a base by accepting a proton to form hydronium ion ($H_3O^+$). So, $H_2O$ and $H_3O^+$ is a base - conjugate acid pair. For $H_2PO_4^-$ and $HPO_4^{2 -}$, $H_2PO_4^-$ is an acid and $HPO_4^{2 -}$ is its conjugate base. $H_2O$ and $H_2PO_4^-$ are not a base - conjugate acid pair. $H_2PO_4^-$ and $H_3O^+$ are also not a base - conjugate acid pair.

Answer:

A. $H_2O$ and $H_3O^+$