Question

when certain low melting point solid are mixed together a liquid of soft mass is formed that known as ​

Answer 1

Answer:

Covalent solids are soft, have a low melting point (due to relatively weak bonds), and are a poor conductor of electricity (due to absence of free ions).

Answer 2

Low melting point solid are mixed together a liquid of soft mass is formed that known as ​"Covalent Solids"

Explanation:

• 'Covalent solids' are soft, have a low melting point (due to relatively weak bonds), and are a poor conductor of electricity (due to absence of free ions).
• The solid SO2 has a melting point of -72°C .
• SO2 is also a covalent compound and hence it is soft.
• NaCl is a crystalline solid and it has a melting point of 801°C.

• Covalent compounds have low forces of attraction between their molecules .
• (i.e.) One H2O molecule isn't as attracted to another H2O molecule than the oppositely charged ions are in an ionic compound.
• Little energy is needed to break their bonds, therefore they have low melting points.
• A molecular solid is composed of molecules held together by van der Waals forces.
• Its properties are dictated by the weak nature of these intermolecular forces.
• They have low melting points and boiling points because the attractions between molecules are easy to overcome.
• They do not conduct electricity because there are no free charges to move.
• Some covalent molecular compounds have higher melting points than expected.
• Covalent solids are also known as a network solid or covalent network solid.
• The typical examples of crystal solids are diamond, graphite, silicon dioxide, or quartz.
• In diamond, each carbon atom shares electrons with four other carbon atoms forming four single bonds.