(NH₄)₂SO₄, Ba(NO₃)₂ and NH₄NO₃ are in aqueous solution <em>(aq) </em>while BaSO₄ is in solid phase <em>(s)</em>, that means that the <em>precipitate is BaSO₄</em>
Water is water and not dirt because its from the cloud s that makes rain also air is water because it was water and then started to get hot and steamy so tired to a gas and then tired to air