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  2. Orders of magnitude (mass) - Wikipedia

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

    10 1 g dag decagram 10 −2 g cg: centigram: 10 2 g hg hectogram 10 −3 g mg: milligram: 10 3 g kg: kilogram: 10 −6 g μg: microgram (mcg) 10 6 g Mg megagram 10 −9 g ng: nanogram: 10 9 g Gg gigagram 10 −12 g pg picogram 10 12 g Tg teragram 10 −15 g fg femtogram 10 15 g Pg petagram 10 −18 g ag attogram 10 18 g Eg exagram 10 −21 g zg ...

  3. Magnesium in biology - Wikipedia

    en.wikipedia.org/wiki/Magnesium_in_biology

    In Mg 2+-starved plants under low light conditions, the percentage of Mg 2+ bound to chlorophyll has been recorded at 50%. [105] Presumably, this imbalance has detrimental effects on other cellular processes. Mg 2+ toxicity stress is more difficult to develop. When Mg 2+ is plentiful, in general the plants take up the ion and store it (Stelzer ...

  4. MG Cars - Wikipedia

    en.wikipedia.org/wiki/MG_cars

    MG cars had their roots in a 1920s sales promotion sideline of Morris Garages, a retail sales and service centre in Oxford belonging to William Morris. The business's manager, Cecil Kimber, modified standard production Morris Oxfords and added MG Super Sports to the plate at the nose of the car. A separate M.G. Car Company Limited was ...

  5. Magnesium - Wikipedia

    en.wikipedia.org/wiki/Magnesium

    Mg(s) + 2 H 2 O(g) → Mg(OH) 2 (aq) + H 2 (g) + 1203.6 kJ/mol However, this reaction is much less dramatic than the reactions of the alkali metals with water, because the magnesium hydroxide builds up on the surface of the magnesium metal and inhibits further reaction.

  6. Magnesium transporter - Wikipedia

    en.wikipedia.org/wiki/Magnesium_transporter

    The kinetics of Mg 2+ transport for the protein were not determined, as 28 Mg 2+ was unavailable. As a substitute, the uptake of 57 Co 2+ was measured and was shown to have a km of 82 μM and a Vmax of 354 pmol min −1 10 8 cells −1. Mg 2+ was a competitive inhibitor with a Ki of 50 μM—the Ki of Mg 2+ inhibition of 60 Co 2+ uptake via ...

  7. Equivalent (chemistry) - Wikipedia

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

    The solution has 1 mole or 1 equiv Na +, 1 mole or 2 equiv Ca 2+, and 3 mole or 3 equiv Cl −. An earlier definition, used especially for chemical elements , holds that an equivalent is the amount of a substance that will react with 1 g (0.035 oz) of hydrogen , 8 g (0.28 oz) of oxygen , or 35.5 g (1.25 oz) of chlorine —or that will displace ...

  8. Orders of magnitude (magnetic field) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    10 mG: Blender (30 cm or 1 ft away) [5] 1.3 μT to 2.7 μT: 13 mG to 27 mG: High power (500 kV) transmission lines (30 m or 100 ft away) [6] 6 μT: 60 mG: Microwave oven (30 cm or 1 ft away) [5] 10 −5 T 10 μT: 100 mG: 24 μT: 240 mG: Magnetic tape near tape head: 31 μT: 310 mG: Earth's magnetic field at 0° latitude (on the equator) 58 μT ...

  9. Equivalent weight - Wikipedia

    en.wikipedia.org/wiki/Equivalent_weight

    For example, 50 g of zinc will react with oxygen to produce 62.24 g of zinc oxide, implying that the zinc has reacted with 12.24 g of oxygen (from the Law of conservation of mass): the equivalent weight of zinc is the mass which will react with eight grams of oxygen, hence 50 g × 8 g/12.24 g = 32.7 g.