Question

consider the reaction when aqueous solutions of chromium(iii) bromide and potassium hydroxide are combined. the net ionic equation for this reaction is: (be sure to specify states such as (aq) or (s). if a box is not needed leave it blank. if no reaction occurs leave all boxes blank and click on \submit\.) submit answer try another version 3 item attempts remaining

Explanation:

Step1: Write the chemical formulas

Chromium(III) bromide is $CrBr_3$ (aq), potassium hydroxide is $KOH$ (aq).

Step2: Write the molecular - equation

The molecular equation for the reaction is $CrBr_3(aq)+ 3KOH(aq)
ightarrow Cr(OH)_3(s)+3KBr(aq)$.

Step3: Write the total ionic equation

The total ionic equation is $Cr^{3 +}(aq)+3Br^{-}(aq)+3K^{+}(aq)+3OH^{-}(aq)
ightarrow Cr(OH)_3(s)+3K^{+}(aq)+3Br^{-}(aq)$.

Step4: Write the net - ionic equation

Cancel out the spectator ions ($K^{+}$ and $Br^{-}$). The net - ionic equation is $Cr^{3 +}(aq)+3OH^{-}(aq)
ightarrow Cr(OH)_3(s)$.

Answer:

$Cr^{3 +}(aq)+3OH^{-}(aq)
ightarrow Cr(OH)_3(s)$