as all of its molecules are packed closely together and have a strong bond!
Because ionic compounds have negative and positive charges known as cations and anions which are attracted ro each other therefore strengthening the bond within the lattice.
Calcium Oxide has a high melting point because it is an ionic compound.
Melting Point: 839.0 °C
Boiling Point: 1484.0 °C
Calcium
Melting Point: 839.0 °C (1112.15 K, 1542.2 °F)
Boiling Point: 1484.0 °C (1757.15 K, 2703.2 °F)
Calcium carbonate is decomposed by heating.
Fairly high. (842 to 848°C)
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according to my calculations it explains the high melting point
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
Calcium is considered a Metal since is in position 2 of the periodic table, it is also malleable which is a property of metals and it has also a high melting and boiling point (as shown below) also a property of metals. It can be beaten into extremely thin sheets. It can be pressed, rolled, and cut.Melting point is 851 degrees Centigrade.Boiling point is 1482 degrees Centigrade.
low melting point, it is a gas at room temperature....
according to my calculations it explains the high melting point
High melting point
No it is a solid. Calcium has a high melting point. Most metals (except mercury) have high melting points.
The melting point of the oxide Fe2O3 is 1 565 oC.
Some physical properties of calcium oxide are:- density: 3,34 g/cm3- melting point: 2 613 oC- boiling point: 3 850 oC (at high pressure)- crystlline structure: face-centered cubic- enthalpy of formation: 635 kJ/mol
because it has high melting/dissolving 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
Melting point of zinc: 787,15 0F Boiling point of zinc: 1 655 0F
Calcination is the heating of an ore at high temperature. Calcium carbonate undergoes calcination to give calcium oxide. Calcium oxide doesn't undergo calcination.
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.
high melting point
it has a low melting point