Question

Which is a spectator ion in the reaction between these two solutions babr2 + na2so4?

Answer 1

Spectator ions: Na+ and Br-

Step-by-step explanation:

In a chemical reaction, a spectator ion is a species that does not participate in the reaction and exists in the same form in both the reactants and products side.

The given equation is:

`BaBr_(2 )(aq)+ Na_(2)SO_(4)(aq)\rightarrow BaSO_(4)(s)+ 2NaBr(aq)`

The total ionic equation is

`Ba^(2+) + 2Br^(-)+ 2Na^(+) + SO_(4)^(2-)\rightarrow BaSO_(4)+ 2Na^(+)+ 2Br^(-)`

The ions that remain unchanged are: Na+ and Br- ions.

These can be cancelled out on either side to get the net ionic equation:

`Ba^(2+)  + SO_(4)^(2-)\rightarrow BaSO_(4)`

Answer 2

spectator ion are ions which remain unchanged during chemical equation and does not affect equilibrium
chemical equation for the reaction is as follows
NaSO4 +Babr2 ---> 2 Nabr + BaSO4
ionic equation is as follows
Ba ^+2 + SO^-2 --->BaSO4(s)
therefore the spectator ion are Na+ and Br- ions