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Magnesium chloride is a neutral solid salt but hydrogen chloride is an acid gas. The chemical bonds in magnesium chloride are very strong ionic bonds in which the magnesium atom gives an electron to the chlorine atom so that they each have opposite electric charge and are drawn very closely and strongly together. The bonds in hydrogen chloride are covalent and much weaker because the elements do not exhange electrons so the atoms are not pulled together by electric forces.Thus the magnesium chloride is a high meltng point solid and thehydrogen chloride is a low freezing point gas.
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∙ 12y ago
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∙ 14y agoMagnesium oxide has a very high bond strength, which results from the fact that the difference in electronegativity of the two elements, magnesium and oxygen, is extremely high. To put it in other words, the very negatively charged oxygen and the very positively charged magnesium atoms will strongly attract eachother. This tends to hold them in place against the tendency of heat to break them apart, hence, a high temperature is need to melt this compound.
Wiki User
∙ 14y agoMagnesium chloride is ionic compound. There is a strong electrostatic force of attraction between 2 chloride atoms and 1 magnesium atom. The bond holding the atoms together is known as ionic bond. A high heat energy have to be applied to break the strong bond holding the atoms, resulting the compound to record a high melting point.
Wiki User
∙ 12y agoAs for every magnesium atom there are two chloride atoms attached which makes the strength of the bond quite strong. Therefore, a lot of energy is required to break it which is why it has a high melting point.
Wiki User
∙ 12y agoBecause of the Strong ionic bond between the ions in the compound i.e Mg2, Br-1
they require a lot of energy to brake hence the high melting point
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∙ 14y agoBecause the ions are held together by very strong forces and to melt, you need the ions to break apart.
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∙ 12y agoSodium and magnesium chlorides are solids with high melting and boiling points because of the large amount of heat which is needed to break the strong ionic attractions.
Wiki User
∙ 15y agoAll crystals have high MPs.
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Magnesium oxide as a refractory lining material?
Magnesium oxide is used to make linings for some furnaces. It is known as a refractory material - which just means that it is resistant to heat.Magnesium oxide has a high melting point (2852°C) and so resists the high temperatures in a furnace. Its melting point is high because of the strong ionic bonds between the small Mg2+ and O2- ions.
Does rust have a very high melting point?
The melting point of the oxide Fe2O3 is 1 565 oC.
Suggest a reason why magnesium oxide is used to line the inside of furnaces?
Because it has a very high lattice enthalpy as a result of it's relatively high charge density, therefore it is very thermally stable i.e. it has a very high melting point.
What is the melting and boiling point of zinc oxide?
Melting point of zinc: 787,15 0F Boiling point of zinc: 1 655 0F
Why magnesium oxide has a high melting point and water has a low melting point?
This is simply due to the very different chemical make-up of the two substances. Atoms, ions, and molecules are arranged in particular ways to make up all matter, based on their specific chemical properties. It is because of this specific arrangement of atomic particles that give things their specific chemical and physical properties.
Does the oxide of Barium have a high or low melting point?
High melting point
Magnesium oxide as a refractory lining material?
Magnesium oxide is used to make linings for some furnaces. It is known as a refractory material - which just means that it is resistant to heat.Magnesium oxide has a high melting point (2852°C) and so resists the high temperatures in a furnace. Its melting point is high because of the strong ionic bonds between the small Mg2+ and O2- ions.
Does magnesium sulfate have a high melting point?
Magnesium sulfate has a high melting and boiling point, as it is made of Ionic bonds which are very strong. A lot of energy is needed to break them. So ionic compounds have high melting and boiling points. See related link for more information.
Does rust have a very high melting point?
The melting point of the oxide Fe2O3 is 1 565 oC.
Why does aluminum oxide have a high melting point?
it has a giant ionic lattice structure containing oppositely charges ions. these take alot of energy to break, and the substance therefore has a high melting point
Suggest a reason why magnesium oxide is used to line the inside of furnaces?
Because it has a very high lattice enthalpy as a result of it's relatively high charge density, therefore it is very thermally stable i.e. it has a very high melting point.
Is Magnesium melting point above room temperature?
Magnesium sulfate doesn't melt; at high temperature MgSO4 is thermally decomposed.
Is magnesium sulphate's melting point above room temperature?
Magnesium sulfate doesn't melt; at high temperature MgSO4 is thermally decomposed.
Which property of calcium oxide does the lattice structure explain?
according to my calculations it explains the high melting point
What is the melting and boiling point of zinc oxide?
Melting point of zinc: 787,15 0F Boiling point of zinc: 1 655 0F
What compound is formed by magnesium and oxygen?
Magnesium oxide, MgO (base). It is a form of rust.
Does chromium have a high low melting point?
high melting point
