Question

What type of reaction is `BaCl_2 + Na_2SO_4 -> 2NaCl + BaSO_4`?

Answer 1

A `"metathesis or partner exchange reaction."`

Explanation:

`BaCl_2(aq) + Na_2SO_4(aq) rarr BaSO_4(s)darr + 2NaCl(aq)`

Barium sulfate is reasonably insoluble in aqueous solution. The salt will precipitate from solution on mixing the reagents.