Patent claims reciting compounds where at least one group of a compound genus is defined by its function are common. For ...

It has a giant lattice structure with strong electrostatic forces of attraction. Small molecules - AQA A covalent bond is a shared pair of electrons. Covalent bonding forms molecules. Substances ...

Save guides, add subjects and pick up where you left off with your BBC account. Multiple choice questions appear throughout both exam papers, and at both foundation tier and higher tier. Multiple ...