How are the elements arranged in the modern periodic table?

Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion

One student said that the investigation was not valid (a fair test). write a plan for the investigation that includes improvements to the method and apparatus