please i really need your help.I need to know brief history of melbourne in the 1900thankyou!!!!
NH4 +1 is the ammonium ion and there are 2 of them SO4 -2 is the sulfate ion and there is only 1 of them Uniting these two gives you an electrically neutral compoundCations are + because they give up electronsJust think of the t as similar to the + and you won't have any problem with themThe anions are mainly in Group 6 (Oxygen, etc) and 7 (F,Cl, etc.) of the PTAg +2, Na +1 are the cationsYou can go to Pauling Electronegativity Table (Google it) and you'll find that these two reactants are ionic compounds and the / (electronegativity difference) between Na and NO3 is than that for AgNO3 so the result will be Na reacts with NO3 and leaves the Ag +1 to unite with the Cl -1 and precipitateThere will come a time when you'll be exposed to spectator ions and in this particular reaction they would be the Na +1 and NO3 -1hope this helps.
