Non-polar solvent is a liquid with non-polar molecules. It dissolves covalent compounds, non-water solvent.
In a hexagonal close-packed (hcp) arrangement of atoms, the unit cell consists of three layers of atoms. The top and bottom layers (a) contain six atoms at the corners of a hexagon and one atom at the center of each hexagon. The middle layer (b) contains three atoms nestled between the atoms of the top and bottom layers, hence, the name close-packed. The hexagonal close packed structure can be made by piling layers in the a-b-a-b-a-b... sequence.
Normal boiling point is a temperature at which pressure of liquid vapour is 101 325 Pa.
Paper is the thin sheet of material made of cellulose pulp, derived mainly from wood, but also from rags and certain grasses, and processed into flexible leaves or rolls. It is manufactured by bleaching raw material using the bleaching-powder, mixing it with inorganic fillers, colours and glues, and drying. Used primarily for writing, printing, drawing, wrapping, and covering walls.
Paraffin waxes are a mixture of solid alkanes. They are used in the production of candles.
Paramagnetism is a type of magnetism characterised by a positive magnetic susceptibility, so that the material becomes weakly magnetised in the direction of an external field. The magnetisation disappears when the field in removed.
Parchment paper is impermeable paper obtained by dipping cellulosic paper in the sulphuric acid.
Partial pressure is a pressure that one component of gas mixture would have if it were alone in the same volume and at the same temperature as the mixture is in now.
Generalic, Eni. "S.t.p.." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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