The Skin of a red grape is arguably the most important ingredient of red wine. Because the pulp of the grape is colorless, the tannins and color compounds of the skin are necessary to give red wine its beautiful color. The pigment is transferred into the wine when the skins are left with the juice during fermentation.
According to the solubility rules, all silver salts are insoluble in water with the exception of silver nitrate, silver acetate and silver sulfate. Therefore, AgBr will precipitate out. The other compound Mg(NO 3) 2 will remain in solution because all nitrates, (NO 3) - , are soluble in water.ccording to the solubility rules, all silver salts are insoluble in water with the exception of silver nitrate, silver acetate and silver sulfate. Therefore, AgBr will precipitate out. The other compound Mg(NO 3) 2 will remain in solution because all nitrates, (NO 3) - , are soluble in water.
1 All sulfates are soluble except for barium sulfate and lead sulfate (PRECIPITATE)5. 2  All carbonates are insoluble (PRECIPITATE) except for sodium and potassium which are soluble. 3  14. 4  PRACTICAL-In a test tube mix small quantities of two solutions and note whether there is a precipitate or not .. All sodium compounds are soluble.2. 2  All nitrates are soluble in water3. 3  All chlorides and iodides are soluble except for silver chloride/iodide and lead chloride/iodide4. 4  All sulfates are soluble except for barium sulfate and lead sulfate.5.