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
If an insoluble salt forms by the reaction of soluble substances in water and falls out of solution, we call it a precipitate (see image). Common insoluble (sparingly soluble) salts are carbonates, hydroxides, sulfates, and sulfides.