
The table shows some properties of four elements. Use the data to answer the following questions. (Assume that steel has similar properties to iron.)

Suggest why many car engine blocks are made from aluminium alloys rather than from steel.

Suggest why many car engine blocks are made from aluminium alloys rather than from steel.
Important Questions on States of Matter
The table shows some properties of four elements. Use the data to answer the following questions. (Assume that steel has similar properties to iron.)
Explain the differences in tensile strength and electrical conductivity of iron and sulfur.

Explain the following property of silicon(IV) oxide by referring to its structure and bonding:
It has a high melting point.

It does not conduct electricity.

It is a crystalline solid.

silicon(IV) oxide is hard.

buckminsterfullerene, C60, is converted from a solid to a gas at a relatively low temperature


Suggest, using ideas of structure and bonding, why:
buckminsterfullerene, C60, is relatively soft.
