Chemistry triple Science 0.0 / 5 ? ChemistryAnalysing substancesGCSEEdexcel Created by: anisashahCreated on: 14-11-19 22:24 Cation A positively charged ion (usually in a metal ion) formed by losing electrons 1 of 27 Emission spectrum The spectrum of light emitted by an atom, ion or molecule. 2 of 27 Flame Photometer A machine used to identify metal ions in solution and to determine their concentration. 3 of 27 Standard solution A solution containing a known concentration of a substance 4 of 27 Spectrum Individual components of light arranged in order of wavelength or frequency. 5 of 27 Calibration curve A graph used to determine the concentration of a substance in a sample. 6 of 27 Confirmatory test A chemical test carried out to check the conclusion from the results of another test. 7 of 27 Precipitate An insoluble product formed when solutions of two soluble reactants are mixed. 8 of 27 Precipitate reaction A reaction in which an insoluble product is formed from two soluble reactants. 9 of 27 Anion A negatively charged ion (usually a metal ion) formed by gaining electrons. 10 of 27 Halide A compound consisting of a group 7 element and another element, usually hydrogen or a metal. 11 of 27 Halide ion A negative charged ion formed from one of the group 7 elements. 12 of 27 Alloy A metal with one or more other elements (usually metals) added to improve its properties. 13 of 27 Ceramics A range of hard, durable, non metallic materials, which are generally unaffected by heat, e.g. china and glass 14 of 27 Clay ceramics Hard, durable materials, including brick, porcelain and china. 15 of 27 Glass A solid produced by cooling a molten substance. The atoms are joined to form a giant structure without crystals 16 of 27 Malleable A shape that an be hammered and rolled into any shape without shattering. 17 of 27 Monomer A molecule that can join other molecules like itself to form a polymer. 18 of 27 Opaque A material that does not let light through. It is not possible to see through opaque objects. 19 of 27 Plasticiser Substance added to a polymer to make the polymer more softer and more flexible. 20 of 27 Polymer A substance made up of long molecules containing repeating groups of atoms, formed by joining monomer molecules together. 21 of 27 Transparent A coloured or colourless object where light can pass through 22 of 27 Composite material A mixture of two or more materials with contrasting properties, combined to produce a material with properties of both. 23 of 27 Compressive strength A measure of how well a material can resist it getting squashed. 24 of 27 Matrix In a composite material, the substance that binds the reinforcement materials together. 25 of 27 Reinforcement In a compostitve material , the substance that is bound together by the matrix material. 26 of 27 Tensile strength A measure of how well a substance can resist stretching. 27 of 27
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