Ionic compounds dissolve in water because the water molecules hydrate the ions. Explanation: To dissolve an ionic compound, the water molecules must be able to stabilize the ions that result from breaking the ionic bond. They do this by hydrating the ions.
This of course begs the question “Why are ionic compounds soluble in water?”
You can look up here something about ionic bonding. But, except that, here is a simple answer: When ionic bonds form, one atom becomes positively charged (+), and the other one becomes negatively charged (-). Water is a covalent polar compound (it has positive and negative poles).
– Chemistry Question Why are ionic compounds are soluble in water but insoluble in kerosene? The ionic compounds are held together by ionic bonds and categorized as ionic compounds. The crystalline solids are formed by neatly packed ions of opposite charges.
What are the solubility rules for ionic solids in water?
This is a list of the solubility rules for ionic solids in water. Solubility is a result of an interaction between polar water molecules and the ions that make up a crystal. Two forces determine the extent to which the solution will occur: This force tends to bring ions into solution.
What is solubility of a crystal?
Solubility is a result of an interaction between polar water molecules and the ions which make up a crystal. Two forces determine the extent to which the solution will occur: This force tends to bring ions into solution. If this is the predominant factor, then the compound may be highly soluble in water.
Why are ionic crystals not malleable?
In ionic compounds, electrons are tightly held by the ions, and the ions cannot move translationally relative to each other. This explains many properties of ionic solids.
Metals are malleable due to the layers of atoms which can move over each other. Ionic crystals are made of rigid lattice structures The molecular structure of metals consists of metallic ions in a sea of de-localized electrons. The ions are closely packed in a regular arrangement.
Why are most metals malleable and ductile but ionic crystals not?
Explain why most metals are malleable and ductile but ionic crystals are not. The malleablility and ductility of metals are possible because metallic bonding is the same in all directions throughout the solid. When struck, one plane of atoms in a metal can slide past another without encountering resistance or breaking bonds.
What happens to a crystal when it is struck?
When struck, one plane of atoms in a metal can slide past another without encountering resistance or breaking bonds. By contrast, recall from Section 3 that shifting the layers on an ionic crystal causes the bonds to break and the crystal to shatter. “.