In this exploration we not only mixed different chemicals together to see how they would react (surprise, surprise), but we also found their chemical names and formulas. So, how did we do this? By looking at the ions in the compound. The subscript tells us how many ions are needed. The subscript is compound specific and cannot be changed. The ions themselves are denoted by the charge, because that tells us if we have positive are negative ions. In order for a compound to be stable, you must have a equal amount of both. For example, in Ag+ and OH- the positive and the negative cancel out, so the formula would simply be AgOH. In all of the equations, if one of the compounds has a subscript, then that subscript will still be there in the formula, because as I stated earlier, the subscript cannot change. The symbols of the elements (Ag, OH, Pb, etc) also never change. The formulas also don’t have charge numbers because they canceled each other out. The arrangement of the table goes from very simple formulas (AgCl) to much more complex formulas that involved subscripts and higher charged ions like Fe3(PO4)3.