Compound structures

[yousawinner]

Referring to their structures, explain why ethene is a gas and sodium chloride is solid.

 

[WonderwhatnameIshoulduse]

Referring to their structures, explain why ethene is a gas and sodium chloride is solid.

Well Sodium Chloride is formed through ionic bonding, that is the electrons are transferred . Because they have an ionic bonding, their melting and boiling points are very high. Thus they are in a solid form at room temperature.
Ethene on the other hand has a covalent bonding where the electrons are shared. Covalent compounds usually have a lower melting and boiling point which is why ethene is in its gaseous state.

 

[darklashbazinga]

I AM GIVING my uct exam in ovt/nov ,could u plzzz recommend wich year papers shuld i solve???plzz be specific (don't say solve all the past papers)plzzz reply for pracs i am asking????
thanx in advance!

Well Sodium Chloride is formed through ionic bonding, that is the electrons are transferred . Because they have an ionic bonding, their melting and boiling points are very high. Thus they are in a solid form at room temperature.
Ethene on the other hand has a covalent bonding where the electrons are shared. Covalent compounds usually have a lower melting and boiling point which is why ethene is in its gaseous state.