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  2. QLZ-87 grenade launcher - Wikipedia

    en.wikipedia.org/wiki/QLZ-87_grenade_launcher

    Air cooling, gas-operated (direct impingement) Rate of fire: 480 rounds/min: Muzzle velocity: 190 m/s (620 ft/s) Effective firing range: 600 m (2,000 ft) Maximum firing range: 1,750 m (5,740 ft) (tripod-mounted) Feed system: 6- or 15-round drum magazine: Sights: Iron sights 3x magnification optic Optic mounting rail for night vision or thermal ...

  3. Table of specific heat capacities - Wikipedia

    en.wikipedia.org/wiki/Table_of_specific_heat...

    For gases, departure from 3 R per mole of atoms is generally due to two factors: (1) failure of the higher quantum-energy-spaced vibration modes in gas molecules to be excited at room temperature, and (2) loss of potential energy degree of freedom for small gas molecules, simply because most of their atoms are not bonded maximally in space to ...

  4. Aluminium - Wikipedia

    en.wikipedia.org/wiki/Aluminium

    Aluminium (or aluminum in North American English) is a chemical element; it has symbol Al and atomic number 13. Aluminium has a density lower than that of other common metals, about one-third that of steel. It has a great affinity towards oxygen, forming a protective layer of oxide on the surface when exposed to air.

  5. Heat capacities of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Heat_capacities_of_the...

    All values refer to 25 °C and to the thermodynamically stable standard state at that temperature unless noted. Values from CRC refer to "100 kPa (1 bar or 0.987 standard atmospheres)".

  6. Densities of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Densities_of_the_elements...

    (calc. ideal gas) 1.553 g/L: 25 °C, 101.325 kPa VDW (lit. source) 1.696 g/L: 1.6074 kg/m 3: 15 °C, 1.013 bar Archived 2007-09-28 at the Wayback Machine: 0.0983 lb/ft 3: 70 °F (21 °C), 1 atm 10 Ne neon; use: 0.9002 g/L: 0 °C, 101.325 kPa CRC (calc. ideal gas) 0.825 g/L: 25 °C, 101.325 kPa LNG: 0.8999 g/L: 0 °C KCH: 0.9002 kg/m 3: 0 °C ...

  7. Aluminium compounds - Wikipedia

    en.wikipedia.org/wiki/Aluminium_compounds

    Aluminium's electropositive behavior, high affinity for oxygen, and highly negative standard electrode potential are all more similar to those of scandium, yttrium, lanthanum, and actinium, which have ds 2 configurations of three valence electrons outside a noble gas core: aluminium is the most electropositive metal in its group. [1]

  8. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    Prices of hydrogen produced by distributed steam methane reforming, as predicted by H2A Production Model from United States Department of Energy, [9] assuming price of natural gas of US$3/MMBtu (US$10/MWh; US$0.10/m 3). Does not include cost of storage and distribution. 1: 2 H (D) Deuterium: 0.0001667 [10] 13 400: 2.23: 2020: CIL [11]