Hydrogen chloride, HCl, is a gas at room temperature. It dissolves in water to form hydrochloric acid.
Hydrogen has atomic number 1. The electronic configuration of chlorine is 2.8.7.
Explain how a hydrogen atom and a chlorine atom form a covalent bond.
Describe the arrangement of the outer shell electrons of the chlorine atom in a molecule of hydrogen chloride.
Compare the bonding in hydrogen chloride with the bonding in sodium chloride.
Calculate the number of molecules in 3.65 g of hydrogen chloride. Relative atomic masses: H = 1.0, Cl = 35.5. Avogadro constant = 6.02 × 1023 per mol
53 exam-style questions on Edexcel GCSE Chemistry 2.4 Covalent bonding, covering 2.4.1 Covalent bonding and simple molecules. Each one has a worked solution and a mark scheme showing where the marks go.