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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.
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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 krypton according to the mohs scale of hardness?
Krypton is a noble gas and does not have a hardness value on the Mohs scale of hardness, which is typically used to measure the hardness of minerals and other solid materials. The Mohs scale ranges from 1 (talc) to 10 (diamond), focusing on solid substances. Since krypton is gaseous at room temperature and not a solid material, it does not apply to the scale.
What rock with hardness 10 on the mobs scale?
The rock that is rated 10 on the Mohs scale of mineral hardness is diamond. Diamonds are renowned for their exceptional hardness, making them the hardest natural material known. This property allows them to scratch other substances and is why they are commonly used in cutting tools and jewelry.
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.
Any impenetrably or unyielding hard substance?
Diamond is one of the hardest substances known, with a rating of 10 on the Mohs scale of mineral hardness. Other examples of hard substances include tungsten carbide and silicon carbide.
What other substance cause by permanent hardness?
Permanent hardness in water is hardness due to the presence of the chlorides, nitrates and sulphates of calcium and magnesium, which will not be precipitated by boiling.
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 properties distinguishes minerals from other substances?
Minerals have a defined chemical composition and crystalline structure, distinguishing them from other substances. They are typically formed through natural geological processes and have characteristic physical properties, such as hardness and cleavage. Minerals also occur in inorganic, solid form in nature.
What is the definition of adamant?
A stone imagined by some to be of impenetrable hardness; a name given to the diamond and other substances of extreme hardness; but in modern mineralogy it has no technical signification. It is now a rhetorical or poetical name for the embodiment of impenetrable hardness., Lodestone; magnet.
What other substances can cause a rainbow to form?
dont no
Substances that cause the oxidation of other substances are?
Substances that cause the oxidation of other substances are known as oxidizing agents. These agents accept electrons from other substances, causing them to become oxidized while the agent itself gets reduced. Examples of oxidizing agents include oxygen, chlorine, and hydrogen peroxide.
What is the hardness of krypton according to the mohs scale of hardness?
Krypton is a noble gas and does not have a hardness value on the Mohs scale of hardness, which is typically used to measure the hardness of minerals and other solid materials. The Mohs scale ranges from 1 (talc) to 10 (diamond), focusing on solid substances. Since krypton is gaseous at room temperature and not a solid material, it does not apply to the scale.
What is the ifference between an electromagnet and a permanent magnet?
Electromagnets and permanent magnets both attract or repel other magnets and attract iron and other substances. An electromagnet is a magnet that is only active when it has a current passing through it; permanent magnets are always active.
What rock with hardness 10 on the mobs scale?
The rock that is rated 10 on the Mohs scale of mineral hardness is diamond. Diamonds are renowned for their exceptional hardness, making them the hardest natural material known. This property allows them to scratch other substances and is why they are commonly used in cutting tools and jewelry.
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.
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.
Any impenetrably or unyielding hard substance?
Diamond is one of the hardest substances known, with a rating of 10 on the Mohs scale of mineral hardness. Other examples of hard substances include tungsten carbide and silicon carbide.
