Answer:
Fertilisers
And also organic compounds
The charge is 0. the 25 protons cancel out with the charge of the 25 electrons and the 30 neutrons are neutral. So the charge is neutral and 0.
<span>This was one of the old regents. I didn't get this at first glance too so I searched for it and I got this site. lol. I know what to do now. To get a higher boiling point, you have to find which solution has the most moles. Since SO4, PO4, and NO3 are all polyatomic ions, they only count as one mole. </span>