Solid
Ionic bonds are very strong attractive forces that act in all directions betwen oppositely charged ions. It takes a lot of thermal energy to break these bonds, so at room temperature (approximately 20-25oC), the ionic compounds are held together in the solid phase by these strong bonds.
Ionic bonds. All chemical compounds are electrically neutral, in that they do not posess an overall electrstaic charge. Crystalline solids could be either ionic or covalent. The most likely ones to be encountered in a laboratory or in the home are ionic solids. Most ionic compounds are crystalline solids at normal temperature. Ionic solids are generally the union of a metal and a non-metal. Examples include salt (sodium chloride), fluorite (calcium fluoride), and pyrite (iron sulfide). Ionic compounds are electrically neutral because the charges of their ions cancel out. So the answer is ionic bonds.
The typical rule for dissolving substances in one another is that substances most readily dissolve other substances with similar bonds. Alkanes are nonpolar because they have mostly nonpolar bonds. On the other hand, ionic compounds have ionic bonds, which are extremely polar. Therefore, because the difference in bond type, ionic compounds do not dissolve in any alkane.
are usually ions of the original elements
"Bonds" do not "have" bonds, because they are bonds themselves. The questioner may have meant to ask, "Molecular compounds have what type of bonds?", and the answer to that question is "covalent bonds".
liquid or gases
they would be solids at room temperature.
Concrete is made of covalent compounds with strong bonds. Non-metals and metals form ionic compounds only.
No. Ionic compounds are held together by ionic bonds.
In molecular compounds, atoms are joined by covalent bonds, while in ionic compounds, they are joined by ionic bonds.
Carbon normally forms four covalent bonds in its compounds, not ionic bonds.
Compounds with covalent bonds form molecules. Compounds with ionic bonds form ionic lattices.
Organic compounds tend NOT to be ionic - there are exceptions. Organic Chemistry is defined as the Chemistry of Compounds of Carbon. Ionic forces tend to intercede when we add Oxygen.
yes
Compared to ionic compounds, covalent compounds have relatively low melting and boiling points because covalent bonds are not as strong as ionic bonds, and it is the bonds which hold materials together in the solid, or more solid phases.
Ionic Bond
Melting a crystal implies that the lattice structure has to be broken down. Ionic compounds have strong lattices held together by electrostatic ionic bonds and generallly have high melting points.