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  2. Reactivity series - Wikipedia

    en.wikipedia.org/wiki/Reactivity_series

    Standard electrode potentials offer a quantitative measure of the power of a reducing agent, rather than the qualitative considerations of other reactive series. However, they are only valid for standard conditions: in particular, they only apply to reactions in aqueous solution. Even with this proviso, the electrode potentials of lithium and ...

  3. Bicarbonate indicator - Wikipedia

    en.wikipedia.org/wiki/Bicarbonate_indicator

    Two solutions are prepared separately: [2] [3] Solution A: 0.02 g of thymol blue, 0.01 g cresol red and 2 mL of ethanol; Solution B: 0.8 g of sodium bicarbonate, 7.48 g of potassium chloride and 90 mL of water; Mix Solution A and B and mix 9 mL of the mixed solution to 1000 mL of distilled water.

  4. Scale (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Scale_(chemistry)

    operations at the pilot plant scale, e.g., carried out by process chemists, which, though at the lowest extreme of manufacturing operations, are on the order of 200- to 1000-fold larger than laboratory scale, and used to generate information on the behavior of each chemical step in the process that might be useful to design the actual chemical ...

  5. Molecular graphics - Wikipedia

    en.wikipedia.org/wiki/Molecular_graphics

    The individual atoms of the polypeptide have been hidden. All of the non-hydrogen atoms in the two ligands are shown near the top of the diagram. Ribbon diagrams are schematic representations of protein structure and are one of the most common methods of protein depiction used today. The ribbon shows the overall path and organization of the ...

  6. Baumé scale - Wikipedia

    en.wikipedia.org/wiki/Baumé_scale

    The Baumé scale is a pair of hydrometer scales developed by French pharmacist Antoine Baumé in 1768 to measure density of various liquids. The unit of the Baumé scale has been notated variously as degrees Baumé , B° , Bé° and simply Baumé (the accent is not always present).

  7. BBC Bitesize - Wikipedia

    en.wikipedia.org/wiki/BBC_Bitesize

    GCSE Bitesize was launched in January 1998, covering seven subjects. For each subject, a one- or two-hour long TV programme would be broadcast overnight in the BBC Learning Zone block, and supporting material was available in books and on the BBC website. At the time, only around 9% of UK households had access to the internet at home.

  8. Wikipedia : Manual of Style/Chemistry/Structure drawing

    en.wikipedia.org/.../Chemistry/Structure_drawing

    Set the Scale value to 112. Check the Use Alpha Channel box and, finally, click Save. There tends to be an unreasonably large margin left around the diagram's extents, so it is often a good idea to crop the image in a vector program such as Inkscape before uploading it. Leave a small margin of 1.6 pt.

  9. International General Certificate of Secondary Education

    en.wikipedia.org/wiki/International_General...

    Before, this qualification was graded on an 8-point scale from A* to G with a 9th grade “U” signifying “Ungraded”. This measure of grading was also found in the UK GCSE. Most IGCSE subjects offer a choice of tiered examinations: Core or Extended papers (in Cambridge International), and Foundation or Higher papers (in Edexcel).