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h2.com.hk

Provided by Alexa ranking, h2.com.hk has ranked N/A in N/A and 5080153rd on the world. It is hoted in N/A with IP address 180.92.181.9. The home page has 0 external link.

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Owner:	N/A
RANK:	5080153
Country code:	N/A
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Rank on country:	N/A
Host:	N/A
Ip:	180.92.181.9
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Extension:	com.hk

Top URL related to h2.com.hk

• 1. Hydrogen - Wikipedia

  wikipedia.org

  Link: https://en.wikipedia.org/wiki/Hydrogen

  Description: WebProperties. History. Cosmic prevalence and distribution. Production. Applications. Biological reactions. Safety and precautions. See also. Notes. References. Further reading. External links. Hydrogen is a chemical element; it has symbol H and atomic number 1.

• 2. Hydrogen | Properties, Uses, & Facts | Britannica

  britannica.com

  Link: https://www.britannica.com/science/hydrogen

  Description: WebFeb 22, 2024 · hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements. The hydrogen atom has a nucleus consisting of a proton bearing one unit of positive electrical charge; an electron, bearing one unit of negative electrical charge, is also associated with this nucleus.

• 3. H2 Database Engine (redirect)

  h2database.com

  Link: http://h2database.com/

  Description: WebWelcome to H2, the Java SQL database. The main features of H2 are: Very fast, open source, JDBC API. Embedded and server modes; in-memory databases. Browser based Console application. Small footprint: around 2.5 MB jar file size. H2 …

• 4. Hydrogen Gas (H2) - Structure, Properties and Uses - BYJU'S

  byjus.com

  Link: https://byjus.com/chemistry/hydrogen-gas/

  Description: WebHydrogen is the non-metal with the chemical symbol H. The molecular formula of hydrogen is H 2. Hydrogen has been recognized as a convenient, clean-burning fuel. It can be stored as a compressed gas or as a liquid and is suitable for internal combustion engines in automobiles.

• 5. Hydrogen - Density and Specific Weight vs. Temperature and …

  engineeringtoolbox.com

  Link: https://www.engineeringtoolbox.com/hydrogen-H2-density-specific-weight-temperature-pressure-d_2044.html

  Description: WebOnline calculator, figures and tables showing density and specific weight of hydrogen, H2, at temperatures ranging from -260 to 325 °C (-435 to 620 °F) at atmospheric and higher pressure - Imperial and SI Units.

• 6. Hydrogen - Thermophysical Properties - The Engineering ToolBox

  engineeringtoolbox.com

  Link: https://www.engineeringtoolbox.com/hydrogen-d_1419.html

  Description: WebHydrogen, H2, is a colorless, odorless gas. Hydrogen is easily ignited. Once ignited it burns with a pale blue, almost invisible flame. The vapors are lighter than air. It is flammable over a wide range of vapor/air concentrations. Hydrogen is not toxic but is a simple asphyxiate by the displacement of oxygen in the air.

• 7. Hydrogen | H2 | CID 783 - PubChem

  nih.gov

  Link: https://pubchem.ncbi.nlm.nih.gov/compound/Hydrogen

  Description: WebHydrogen is a colorless, odorless gas. It is easily ignited. Once ignited it burns with a pale blue, almost invisible flame. The vapors are lighter than air. It is flammable over a wide range of vapor/air concentrations. Hydrogen is not toxic but is a simple asphyxiate by the displacement of oxygen in the air.

• 8. Hydrogen - NIST Chemistry WebBook

  nist.gov

  Link: https://webbook.nist.gov/cgi/cbook.cgi?ID=C1333740&Mask=1

  Description: WebH° − H° 298.15 = A*t + B*t 2 /2 + C*t 3 /3 + D*t 4 /4 − E/t + F − H. S° = A*ln (t) + B*t + C*t 2 /2 + D*t 3 /3 − E/ (2*t 2) + G. C p = heat capacity (J/mol*K) H° = standard enthalpy (kJ/mol) S° = standard entropy (J/mol*K) t = temperature (K) / 1000.

• 9. Hydrogen - NIST Chemistry WebBook

  nist.gov

  Link: https://webbook.nist.gov/cgi/cbook.cgi?ID=C1333740&Mask=1E9F

  Description: WebMolecular weight: 2.01588. IUPAC Standard InChI:InChI=1S/H2/h1H Copy. IUPAC Standard InChIKey:UFHFLCQGNIYNRP-UHFFFAOYSA-N Copy. CAS Registry Number: 1333-74-0. Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript .

• 10. H2 blockers: Types, uses, and side effects - Medical News Today

  medicalnewstoday.com

  Link: https://www.medicalnewstoday.com/articles/h2-blockers

  Description: WebFeb 10, 2023 · H2 blockers can treat or prevent a number of health problems, including: heartburn; GERD; duodenal and gastric ulcers ; upper gastrointestinal bleeding