Covalent Bond: They are formed by sharing of electrons and have low melting and boiling point. These are soluble in organic solvents and are non-conductor of electricity. However graphite and diamond ...

There are different ways to separate mixtures, for example by filtration, crystallisation, distillation, or chromatography. The method chosen depends upon the type of mixture. Periodic table - OCR ...

Part of Chemistry (Single Science) Unit 1: Structures, trends, chemical reactions, quantitative chemistry and analysis In chemistry, ‘bonding’ describes how atoms are held together. ‘Structure’ ...