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  2. Megalodon - Wikipedia

    en.wikipedia.org/wiki/Megalodon

    In 2020, Cooper and his colleagues reconstructed a 2D model of megalodon based on the dimensions of all the extant lamnid sharks and suggested that a 16 meters (52 ft) long megalodon would have had a 4.65 m (15.3 ft) long head, 1.41 m (4 ft 8 in) tall gill slits, a 1.62 m (5 ft 4 in) tall dorsal fin, 3.08 m (10 ft 1 in) long pectoral fins, and ...

  3. Quantities, Units and Symbols in Physical Chemistry

    en.wikipedia.org/wiki/Quantities,_Units_and...

    Quantities, Units and Symbols in Physical Chemistry, also known as the Green Book, is a compilation of terms and symbols widely used in the field of physical chemistry. It also includes a table of physical constants , tables listing the properties of elementary particles , chemical elements , and nuclides , and information about conversion ...

  4. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    = 20 411.656 65 kg: carat: kt ≡ 3 + 1 ⁄ 6 gr = 205.196 548 3 mg carat (metric) ct ≡ 200 mg = 200 mg clove: ≡ 8 lb av = 3.628 738 96 kg: crith: ≡ mass of 1 L of hydrogen gas at STP: ≈ 89.9349 mg dalton: Da 1/12 the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest: ≈ 1.660 539 068 ...

  5. Conversion of units - Wikipedia

    en.wikipedia.org/wiki/Conversion_of_units

    Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity. This is also often loosely taken to include replacement of a quantity with a corresponding quantity that describes the same physical property.

  6. Stoichiometry - Wikipedia

    en.wikipedia.org/wiki/Stoichiometry

    Reaction stoichiometry describes the 2:1:2 ratio of hydrogen, oxygen, and water molecules in the above equation. The molar ratio allows for conversion between moles of one substance and moles of another. For example, in the reaction 2 CH 3 OH + 3 O 2 → 2 CO 2 + 4 H 2 O. the amount of water that will be produced by the combustion of 0.27 moles ...

  7. A Surprisingly Contentious Study Says the Megalodon Was ... - AOL

    www.aol.com/forget-great-white-megalodon-shark...

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  8. Orders of magnitude (mass) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(mass)

    ~10 35 kg Typical globular cluster in the Milky Way (overall range: 3 × 10 3 to 4 × 10 6 M ☉) [160] 2 × 10 35 kg Low end of mass range for giant molecular clouds (1 × 10 5 to 1 × 10 7 M ☉) [161] [162] 7.3 × 10 35 kg Jeans mass of a giant molecular cloud at 100 K and density 30 atoms per cubic centimeter; [163] possible example: Orion ...

  9. Equivalent (chemistry) - Wikipedia

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

    Chemical formula Molecular weight (MW) Elemental mass fraction Valencies (V) Sample Reference Weight Compound weight to elemental mEq Potassium (reference) K 39.098 g/mol 100% 1 (K +) 3000 mg 3000*1/39.098=77 mEq K + Potassium citrate monohydrate C 6 H 7 K 3 O 8: 324.41 g/mol 36.16% 3 (K +) Tolerable DRI for potassium dietary supplements [4] [5 ...