#Precipitation
@chemistryclassesbysunilsir #Precipitation reaction #experiment || Precipitation of barium sulfate Since BaSO4 is a precipitate, it does not need to be split up into ions. Also, any subscripts that the substance has must be brought out to the front of it. You may have noticed that there are ions common to both sides of the equation. These are called spectator ions, and do not take part in the reaction.