Chemical response

At some point, the balance equation for the reaction between barium acetate and sodium chromate (Sodium Chromate) is desired. Everyone thinks that when the two meet, there will be a chemical change.

Barium acetate contains barium ion and acetate ion; sodium chromate contains sodium ion and chromate ion. When the two meet in solution, the ions interact.

Barium ion and chromate ion have strong affinity, so they combine to precipitate barium chromate. Sodium ion and acetate ion still exist in solution.

The equilibrium equation for the reaction is as follows: $Ba (CH_ {3} COO) _ {2} + Na_ {2} CrO_ {4}\ longrightarrow BaCrO_ {4}? + 2NaCH_ {3} COO $. In this equation, the number of atoms of each element on the left and right sides is equal, which conforms to the principle of chemical equilibrium. From everyone's perspective, understanding the essence of this reaction, we also know the essence of the equilibrium equation, which is another point in the way of chemistry.