Draw the electron dot structure of a molecule of methane and state the type of bonding present in it.

Why does hydrogen chloride gas not conduct electricity, while its aqueous solution does?

What is a co-ordinate bond? Give one example.

Explain the formation of magnesium chloride from its atoms, showing the transfer of electrons.

State three differences between electrovalent and covalent compounds.

What is a covalent bond? Give one example each of a single, a double and a triple covalent bond.

Draw the electron dot structure of a molecule of methane and of ammonia, and state the number of lone pairs in each.