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 An ionic compound is a collection of an equal number of positive and negative ions arranged in a three-dimensional lattice. 2  Ionic compounds can be dissociated into their constituent ions with little effort. 3  Further they can be electrolyzed to produce elements or covalent molecules of the constituent atoms. Further they can be electrolyzed to produce elements or covalent molecules of the constituent atoms. 2  Water also weakens the attraction between the ions in an ionic compound. 3  This is why ionic compounds dissolve well in water. 4  Moreover ionic compounds can conduct electricity.