does a reaction occur when aqueous solutions of potassium carbonate and aluminum bromide are combined? if a…
does a reaction occur when aqueous solutions of potassium carbonate and aluminum bromide are combined? if a reaction does occur, write the net ionic equation. (use the solubility rules provided in the owl preparation page to determine the solubility of compounds. be sure to specify states such as (aq) or (s). if a box is not needed leave it blank.) 8 more group attempts remaining. use the references to access important values if needed for this question.
Answer
Explanation:
Step1: Write the chemical formulas
Potassium carbonate is $K_2CO_3$ and aluminum bromide is $AlBr_3$. The possible reaction is a double - displacement reaction. The general form of a double - displacement reaction is $AB + CD\rightarrow AD+CB$. So the products would be $KBr$ and $Al_2(CO_3)_3$.
Step2: Check solubility rules
According to solubility rules, most potassium salts ($K^+$) are soluble. Potassium bromide ($KBr$) is soluble. Carbonates ($CO_3^{2 -}$) are generally insoluble, and aluminum carbonate ($Al_2(CO_3)_3$) is insoluble. Since a precipitate ($Al_2(CO_3)_3$) is formed, a reaction occurs.
Step3: Write the balanced molecular equation
$3K_2CO_3(aq)+2AlBr_3(aq)\rightarrow 6KBr(aq)+Al_2(CO_3)_3(s)$
Step4: Write the total ionic equation
$6K^+(aq)+3CO_3^{2 -}(aq)+2Al^{3 +}(aq)+6Br^-(aq)\rightarrow 6K^+(aq)+6Br^-(aq)+Al_2(CO_3)_3(s)$
Step5: Write the net ionic equation
Cancel out the spectator ions ($K^+$ and $Br^-$). The net ionic equation is $2Al^{3 +}(aq)+3CO_3^{2 -}(aq)\rightarrow Al_2(CO_3)_3(s)$
Answer:
Yes $2Al^{3 +}(aq)+3CO_3^{2 -}(aq)\rightarrow Al_2(CO_3)_3(s)$