What are the 3 properties of the ionic compounds?

Answer 1

The general properties of ionic compounds are: Physical state Ionic compounds do not exist in the form of independent molecules but exist in the form of ions in crystalline solids, according to X-ray studies. These ions are arranged to form the crystal lattice in definite geometric pattern. For example, in NaCl crystal, each Na+ ion is surrounded by six Cl- ions and each Cl- ion is surrounded by six Na+ ions. The geometric arrangement of different ionic compounds differ, depending upon the size of the ions and the magnitude of the charges on the ions. High melting and boiling points Ionic compounds have high melting and boiling points. A large amount of energy is required to break the crystal lattice, because the ions are held together by strong electrostatic forces of attraction. The variation in melting point depends upon the charges on the ions and ionic radii. The closer the ions in crystal, larger will be the electrostatic forces of attraction and consequently higher will be the melting point. For example in case of sodium halides, the melting points decrease from NaF to NaI as: NaF (1270K), NaCl (1073K), NaBr (1023K) and NaI (924K). Solubility Ionic compounds are generally soluble in water and other polar solvents having high dielectric constants. This is due to larger electrostatic interactions between polar solvents and ions. However ionic compounds are insoluble in non-polar solvents. Electrical conductivity In solution or in their molten states, ions become free to move. On applying an electric field,the ions get drifted towards towards their respective electrodes.Thus, ionic compounds are good conductors of electricity in these states. However, these do not conduct in their solid state because of strong electrostatic forces between the ions, that does not make them mobile. Ionic reactions The ionic compounds split up into oppositely charged ions when dissolved in water. The chemical reactions of ionic compounds are characteristic of the constituent ions and are known as 'ionic reactions'. Such reactions occur almost instantaneously.For example: 1.Neutralization reactions 2.Double displacement reactions Crystalline character In ionic-compounds each ion is surrounded by oppositely charged ions uniformly distributed all around the ion,thus resulting in a three dimensional solid aggregate called an ionic crystal

Answer 2

3 main properties are magnesium chloride, sodium bicarbonate and sodium oxide.

Answer 3

1) High Melting and Boiling Points. Ionic Compounds and bonded together by strong Ionic Bond. This results in a very strong bond requiring a lot of energy (in the form of heat energy) to overcome. Thus causing High Melting and Boiling points.

2) Conducts electricity in liquid state and in molten state. Ionic Compounds have a Crystal Latice Structure which causes their ions to be at fixed points thus making them unable to conduct electricity when in solid state. However when in liquid state or in molten state, Ions can move freely and thus they can conduct electricity in those two states.

3) Soluble in water but not soluble in organic solvent such as oil.

Answer 4

1) High Melting and Boiling Points. Ionic Compounds and bonded together by strong Ionic Bond. This results in a very strong bond requiring a lot of energy (in the form of heat energy) to overcome. Thus causing High Melting and Boiling points.

2) Conducts electricity in liquid state and in molten state. Ionic Compounds have a Crystal Latice Structure which causes their ions to be at fixed points thus making them unable to conduct electricity when in solid state. However when in liquid state or in molten state, Ions can move freely and thus they can conduct electricity in those two states.

3) Soluble in water but not soluble in organic solvent such as oil.

Answer 5

Ionic compounds have high melting and boiling points due to the strong electrostatic forces between the positive and negative ions. They are typically brittle in solid form because layers of ions can slide past each other easily when force is applied. They conduct electricity when melted or dissolved in water due to the presence of free-moving ions.

Answer 6

Ionic Componds have very high boiling and melting points, they are very hard and brittle, and they conduct electricity when they disolve in water.

Answer 7

1. High melting and boiling points
2. Conduct electricity only when molten or dissolved
3. Soluble in polar solvents such as water

Answer 8

ionic crystals, high melting points, electrical conductive.-David XUE

Answer 9

they disle in water, have a high melting point and are very solevent