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  2. Hydrogen peroxide - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_peroxide

    Hydrogen peroxide ( H2O2) is a nonplanar molecule with (twisted) C 2 symmetry; this was first shown by Paul-Antoine Giguère in 1950 using infrared spectroscopy. [9] [10] Although the O−O bond is a single bond, the molecule has a relatively high rotational barrier of 386 cm −1 (4.62 kJ / mol) for rotation between enantiomers via the trans ...

  3. Gold reserve - Wikipedia

    en.wikipedia.org/wiki/Gold_reserve

    Official U.S. gold reserve since 1900 Changes in Central Bank Gold Reserves by Country 1993–2014 Central 2005 and 2014. A gold reserve is the gold held by a national central bank, intended mainly as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, during the eras of the gold standard, and also as a store of value, or to support the value of ...

  4. Rebate (marketing) - Wikipedia

    en.wikipedia.org/wiki/Rebate_(marketing)

    Rebate (marketing) In marketing, a rebate is a form of buying discount and is an amount paid by way of reduction, return, or refund that is paid retrospectively. It is a type of sales promotion that marketers use primarily as incentives or supplements to product sales. Rebates are also used as a means of enticing price-sensitive consumers into ...

  5. Discounts and allowances - Wikipedia

    en.wikipedia.org/wiki/Discounts_and_allowances

    Discounts and allowances are reductions to a basic price of goods or services. They can occur anywhere in the distribution channel, modifying either the manufacturer's list price (determined by the manufacturer and often printed on the package), the retail price (set by the retailer and often attached to the product with a sticker), or the list ...

  6. Recycling codes - Wikipedia

    en.wikipedia.org/wiki/Recycling_codes

    Recycling codes are used to identify the materials out of which the item is made, to facilitate easier recycling process. The presence on an item of a recycling code, a chasing arrows logo, or a resin code , is not an automatic indicator that a material is recyclable; it is an explanation of what the item is made of.

  7. List of abbreviations used in medical prescriptions - Wikipedia

    en.wikipedia.org/wiki/List_of_abbreviations_used...

    ambiguous meaning, write out "days" or "doses". D5LR. dextrose 5% in lactated Ringer's solution ( intravenous sugar solution ) D5NS. dextrose 5% in normal saline (0.9%) ( intravenous sugar solution ) D5W, D 5 W. dextrose 5% in water ( intravenous sugar solution ) D10W, D 10 W. dextrose 10% in water ( intravenous sugar solution )

  8. Triton X-100 - Wikipedia

    en.wikipedia.org/wiki/Triton_X-100

    Triton X-100 ( C. 14H. 22O (C. 2H. 4O)n) is a nonionic surfactant that has a hydrophilic polyethylene oxide chain (on average it has 9.5 ethylene oxide units) and an aromatic hydrocarbon lipophilic or hydrophobic group. The hydrocarbon group is a 4- ( 1,1,3,3-tetramethylbutyl )- phenyl group. Triton X-100 is closely related to IGEPAL CA-630 ...

  9. Dark chocolate - Wikipedia

    en.wikipedia.org/wiki/Dark_chocolate

    Dark chocolate is a form of chocolate containing only cocoa solids, cocoa butter and sugar. Dark chocolate without added sweetener is known as bitter chocolate [3] or unsweetened chocolate. [4] As with the other two main types of chocolate ( milk and white ), dark chocolate is used for chocolate bars or as a coating in confectionery.

  10. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode ...

  11. Broken rice - Wikipedia

    en.wikipedia.org/wiki/Broken_rice

    On milling, Oryza sativa, commonly known as Asian rice or paddy rice, produces around 50% whole rice then approximately 16% broken rice, 20% husk, 14% bran and meal. African rice, Oryza glaberrima, has more brittle grains, and breakage is higher. [citation needed] Human consumption