In which molecule do two bonded atoms share three pairs of electrons with each other?
Water, H2O\text{H}_2\text{O}H2O
Hydrogen chloride, HCl\text{HCl}HCl
Hydrogen, H2\text{H}_2H2
Nitrogen, N2\text{N}_2N2
98 exam-style questions on AQA GCSE Chemistry 2.1 Chemical bonds, ionic, covalent and metallic, covering 2.1.1 Chemical bonds, 2.1.2 Ionic bonding, 2.1.3 Ionic compounds, 2.1.4 Covalent bonding, and 2.1.5 Metallic bonding. Each one has a worked solution and a mark scheme showing where the marks go.