Macromolecules and Giant Covalent Structures

polyester

• macromolecule

• giant covalent structure

plastic

• macromolecule

• giant covalent structure

nylon

• macromolecule

• giant covalent structure

diamond

• macromolecule

• giant covalent structure

graphite

• macromolecule

• giant covalent structure

sand (silicon dioxide)

• macromolecule

• giant covalent structure

Contains covalent bonds

• simple covalent molecule

• macromolecule

• giant covalent structure

• ionic structure

Contains intermolecular forces of attraction

• simple covalent molecule

• macromolecule

• giant covalent structure

• ionic structure

Arrange from lowest melting point to highest melting point

• polyester

• carbon dioxide

• magnesium chloride

• diamond

Why diamond has high melting point/is very hard?

Since each carbon ​ ​ (a)   is ​ (b)   bonded to another 4 in a ​ (c)   arrangement. And as a lot of energy is required to ​ (d)   the ​ (e)  

• atom
• covalently
• tetrahedral
• break
• covalent bonds.
• molecule
• ion
• hexagonal
• overcome
• intermolecular forces of attraction