Identify the Lewis acid and Lewis base in each of the following reactions:

$$\mathrm { SO } _ { 2 } ( g ) + \mathrm { H } _ { 2 } \mathrm { O } ( l ) \rightleftharpoons \mathrm { H } _ { 2 } \mathrm { SO } _ { 3 } ( a q )$$

Identify the Lewis acid and the Lewis base in each of the following reactions. $\mathrm{BF}_{3}(g)+\mathrm{F}^{-}(a q) \rightleftharpoons \mathrm{BF}_{4}^{-}(a q)$

Identify the Lewis acid and Lewis base among the reactants in each of the following reactions:

$$\mathrm { CN } ^ { - } ( a q ) + \mathrm { H } _ { 2 } \mathrm { O } ( l ) \rightleftharpoons \mathrm { HCN } ( a q ) + \mathrm { OH } ^ { - } ( a q )$$

Identify the Lewis acid and Lewis base in each of the following reactions:

$$\mathrm { HNO } _ { 2 } ( a q ) + \mathrm { OH } ^ { - } ( a q ) \rightleftharpoons \mathrm { NO } _ { 2 } ^ { - } ( a q ) + \mathrm { H } _ { 2 } \mathrm { O } ( l )$$

Identify the Lewis acid and Lewis base among the reactants in each of the following reactions:

$$\left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm { N } ( g ) + \mathrm { BF } _ { 3 } ( g ) \rightleftharpoons \left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm { NBF } _ { 3 } ( s )$$

Identify the Lewis acid and Lewis base in each of the following reactions:

$$\mathrm { Zn } ^ { 2 + } ( a q ) + 4 \mathrm { NH } _ { 3 } ( a q ) \rightleftharpoons \mathrm { Zn } \left( \mathrm { NH } _ { 3 } \right) _ { 4 } ^ { 2 + } ( a q )$$

Classify each species as either a Lewis acid or a Lewis base. a. $Fe^{3+}$ b. $BH_3$ c. $NH_3$ d. $F^-$

Identify the Lewis acid and Lewis base among the reactants in each of the following reactions:

$$\mathrm { HIO } ( l q ) + \mathrm { NH } _ { 2 } ^ { - } ( l q ) \rightleftharpoons \mathrm { NH } _ { 3 } ( l q ) + \mathrm { IO } ^ { - } ( l q )$$

(lq denotes liquid ammonia as solvent)

Identify the Lewis acid and the Lewis base in each of the following reactions. $\mathrm{H}_{2} \mathrm{O}(l)+\mathrm{CN}^{-}(a q) \rightleftharpoons \mathrm{HCN}(a q)+\mathrm{OH}^{-}(a q)$

For each of these reactions, identify the acid and base among the reactants, and state if the acids and bases are Lewis, Arrhenius, and/or Bronsted-Lowry: $\mathrm { NH } _ { 3 } + \mathrm { BF } _ { 3 } \longrightarrow \mathrm { H } _ { 3 } \mathrm { NBF } _ { 3 }$

Identify the Lewis acids and bases in the following reactions. a. $\mathrm{H}^{+}+\mathrm{OH}^{-} \rightleftharpoons \mathrm{H}_{2} \mathrm{O}$ b. $\mathrm{Cl}^{-}+\mathrm{BCl}_{3} \rightleftharpoons \mathrm{BCl_4}^{-}$ c. $\mathrm{SO}_{3}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{2} \mathrm{SO}_{4}$

Identify the Lewis acid and the Lewis base in each of the following reactions. $\mathrm{Ag}^{+}(a q)+2 \mathrm{NH}_{3}(a q) \rightleftharpoons \mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}^{+}(a q)$

Complete and balance the equation for each of the following acid-base reactions, name the reaction products, and write the corresponding net ionic equation: (a) $\mathrm{HClO}_{4}(a q)+\mathrm{Ca}(\mathrm{OH})_{2}(a q) \rightarrow$

Identify the Lewis acid and the Lewis base in the following reaction:

$$\text{$\mathrm{Fe}(s)+5 \mathrm{CO}(g) \longrightarrow \mathrm{Fe}(\mathrm{CO})_5(l)$}$$