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What anion is responsible for permanent hard water?
The anion responsible for permanent hard water is sulfate (SO₄²⁻). Unlike temporary hardness, which is primarily caused by bicarbonates (HCO₃⁻) that can be removed by boiling, permanent hardness remains even after boiling due to the presence of sulfate and other similar ions, such as chloride (Cl⁻) or nitrate (NO₃⁻). These anions do not precipitate out of solution with heat, thus contributing to the overall hardness of the water.
What is the hardness of chrome diopside?
Chlorine, like any other chemical substance, has no hardness unless it is in its solid state. Even then, a temperature would have to be specified for a meaningful answer.
What other substances cause permanent hardness?
Temporary hardness of water is due to the presence of calcium hydrogentrioxocarbonate(IV) which decompose on heating.when this water is heated calcium trioxocarbonate(iv) is form as insoluble and this brings the ca+ out of the solution as precipitate.once the ca+ re out of the solution soap can now lather well.
Which of these diseases can cause permanent paralysis?
Polio and Guillain-Barre syndrome are two diseases that can potentially cause permanent paralysis due to damage to the nerves and muscles. Other conditions such as spinal cord injuries or certain autoimmune disorders can also lead to permanent paralysis.
In science hardest substance?
You can review the site below, to read the ranking of the hardest minerals. Other contributors can add other details to give you additional scientific scales of hardness.
What is difference between the difference between brittleness and hardness?
Hardness measures a material's ability to resist permanent deformation, whereas brittleness measures a material's tendency to fail or break without undergoing significant deformation. In other words, hardness relates to the resistance to scratching or indentation, while brittleness relates to the tendency to fracture.
How does mineralogist identify the hardness of a mineral?
Minerologists identify mineral harness with a variety of tools. In order of hardness, they gnerally use their fingernails, nails, copper pennies, knife blades, glass, porcelain and other minerals such as quartz, topaz, corundum and diamond. The Moh's Hardness Scale gives a list of minerals in order of hardness with talc being the softest with a rating of "1" and diamond the hardest at a "10".
What is the hardness for a diamond?
A Diamond is harder than any other natural or artificial substance known, it is ideal for both GEM and industrial purposes. supplement. Diamond is 10 on the Mohs scale of hardness. No other substance is harder, but not all diamonds are equally hard. Some exceptionally (well relatively) hard diamonds come from New South Wales in Australia.
Why is a corrosive label more dangerous than a irritant label?
The corrosive label is more harmful because although irritant labels shows us that the substance can cause reddening or blistering to the skin, corrosive subtances can attack and DESTROY tissue, including the eyes and skin.
How do you use the word hardness in a snetence?
No other gemstone has the hardness of a diamond.
What is harder diamonds or uranium?
Diamonds are harder than uranium. The hardness of a material is measured on the Mohs scale, where diamonds rank at 10, making them the hardest naturally occurring substance. In contrast, uranium, while it has other notable properties, has a hardness of around 6 on the Mohs scale. Thus, diamonds surpass uranium significantly in terms of hardness.
What is salts hardness?
The Mohs hardness of sodium chloride is 2,5. The Mohs hardness is established by comparison with other minerals, having a known hardness.
