Harvest the onions and the greens when they are at your preferred size and flavor. Keep in mind that you can also just pick up a cheap package of scallions from your farmerâs market or grocery store if you canât find regular sets of them from your nursery.
ionic compound precipitate from a solution of the constituent ions is when the solution is basic or acid. first the ionic compound is allowed to dissociate into ions, when almost all the ions are dissociated a strong acid or base is added to change the ph, in order to precipitate the ions
1 At equilibrium, the ion product = solubility product (K sp) and the solution is said to be saturated. 2  A precipitate will form when two solutions are mixed if the ion product is greater than the solubility product, ie, [M + ][A-sp.