It is not possible for the polar covalent compound to have a lower melting point than the non-polar covalent compound because they have ionic bonds.
A possible compound would be silicon dioxide with giant covalent structure and strong covalent bonds.
A compound with a high melting point is more likely to be ionic rather than covalent. Ionic compounds have strong electrostatic forces between oppositely charged ions, resulting in high melting points. Covalent compounds typically have lower melting points because they are held together by weaker intermolecular forces.
One example of a compound with both ionic and covalent character is ammonium chloride (NH4Cl). It has a low melting point due to its ionic interactions between ammonium cations and chloride anions and covalent interactions within the ammonium ion itself.
They maintain their bonding far longer than nonpolar molecules can with the addition of heat energy. Remember their slightly negative ends will bind with the slightly positive ends of the adjacent molecule.
Covalent bonds do not melt. Compounds with covalent bonds melt and the melting point depends primarily on whether there are discrete molecules held together by intermolecular forces (which have lower melting points) or giant covalent networks such as in silica or diamond (which tend to have higher melting points).
A possible compound would be silicon dioxide with giant covalent structure and strong covalent bonds.
Most covalent compounds have relatively low melting and boiling points, as they are held together by weak intermolecular forces. They are usually insoluble in water but soluble in nonpolar solvents. Covalent compounds tend to be nonconductors of electricity in their solid form.
A compound with a high melting point is more likely to be ionic rather than covalent. Ionic compounds have strong electrostatic forces between oppositely charged ions, resulting in high melting points. Covalent compounds typically have lower melting points because they are held together by weaker intermolecular forces.
One example of a compound with both ionic and covalent character is ammonium chloride (NH4Cl). It has a low melting point due to its ionic interactions between ammonium cations and chloride anions and covalent interactions within the ammonium ion itself.
They maintain their bonding far longer than nonpolar molecules can with the addition of heat energy. Remember their slightly negative ends will bind with the slightly positive ends of the adjacent molecule.
Ionic compounds have melting points higher than covalent compounds.
Silver iodide (AgI) is an ionic compound with strong attractions between oppositely charged ions, resulting in a higher melting point. Vanillin (C8H8O3) is a covalent compound with weaker intermolecular forces, leading to a lower melting point. Ionic compounds typically have higher melting points compared to covalent compounds due to their stronger bonding interactions.
Covalent bonds do not melt. Compounds with covalent bonds melt and the melting point depends primarily on whether there are discrete molecules held together by intermolecular forces (which have lower melting points) or giant covalent networks such as in silica or diamond (which tend to have higher melting points).
Ionic compounds have higher melting points than covalent compounds. Common table salt, sodium chloride, is an ionic compound and has a melting point of 801 oC. Table sugar, sucrose, a covalent compound, has a melting point of about 186 oC.
A covalent compound is a chemical compound formed by the sharing of electrons between atoms. This type of bond is typically found between nonmetal atoms. Covalent compounds often have relatively low melting and boiling points compared to ionic compounds.
Zinc sulfide is a covalent compound.
A covalent compound is a chemical compound formed by the sharing of electron pairs between atoms. These compounds typically have lower melting and boiling points compared to ionic compounds, and they are commonly found in organic compounds. They are also known as molecular compounds.