WebbMagnetite is a mineral and one of the main iron ores, with the chemical formula Fe 2+ Fe 3+ 2 O 4.It is one of the oxides of iron, and is ferrimagnetic; it is attracted to a magnet and can be magnetized to become a permanent magnet itself. With the exception of extremely rare native iron deposits, it is the most magnetic of all the naturally occurring minerals … WebbPermanent hardness: The presence of magnesium and calcium soluble salts in the form of chlorides and sulphates in the water. It is usually not removed by the boiling process. The cause of the permanent hardness of water is dissolved chloride and sulphate ions. These are removed by the ion-exchanger process as cation exchanger resins.

Permanent hardness in water @ Chemistry Dictionary

WebbPermanent Hardness (non-carbonate hardness): Permanent Hardness is due to the presence of dissolved chlorides and sulphates of Calcium, Magnesium, Iron and other heavy elements. It cannot be eliminated by boiling. Hence, we can conclude that Permanent hardness of water is due to the presence of Chlorides and sulphates of … granbury rheumatologist

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Webbcauses of permanent hardness of water - Example. Psychology is a fascinating and diverse field that covers a wide range of topics and issues. If you're studying psychology or writing a psychology paper, you may be wondering what topics to focus on. WebbClark’s process. Ca (HCO3 )2 + Ca (OH)2 → 2CaCO3 + 2H2 O. Calgon’s method. Calgon reacts with hard water and precipitates with salts, which is easier to remove from water. Using ion exchange resins. The unwanted ions in hard water are exchanged with more agreeable ions like sodium ions. Using washing soda. WebbPermanent hardness is due to the soluble SO2− 4 Cl−,N O− 3 of Ca and Mg Solution The correct option is A Permanent hardness can be removed by boiling water Hard water, water that contains salts of calcium and magnesium principally as … granbury restaurants texas