Search results
Results from the WOW.Com Content Network
Hafnium, symbol Hf, a chemical element; Hartree–Fock method, a calculation scheme in the field of computational chemistry; Hydrogen fluoride, HF, a diatomic compound which can dissolve in water to form hydrofluoric acid, a highly corrosive solution; Hydrofluoric acid, HF (aq), a solution of hydrogen fluoride (HF) in water
Hydrogen fluoride does not boil until 20 °C in contrast to the heavier hydrogen halides, which boil between −85 °C (−120 °F) and −35 °C (−30 °F). [6] [7] [8] This hydrogen bonding between HF molecules gives rise to high viscosity in the liquid phase and lower than expected pressure in the gas phase.
HF's position in the electromagnetic spectrum. High frequency (HF) is the ITU designation [1] for the band of radio waves with frequency between 3 and 30 megahertz (MHz). It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters (ten to one hundred meters).
Plus, examples of how to use the term.
pseudo-blend = an abbreviation whose extra or omitted letters mean that it cannot stand as a true acronym, initialism, or portmanteau (a word formed by combining two or more words). (a) = acronym, e.g.: SARS – (a) severe acute respiratory syndrome
HF: heart failure: HFpEF: heart failure with preserved ejection fraction: HFrEF: heart failure with reduced ejection fraction HFM: hand, foot and mouth disease: HFMD: hand, foot and mouth disease: HFNC: high flow Nasal cannula: HFRS: hemorrhagic fever with renal syndrome HGB: hemoglobin: HGH Human Growth Hormone: HGSIL: high-grade squamous ...
To find the texting abbreviations that confuse Floridians most, Vera found 114 of the most-commonly-used text abbreviations and “Identified the top most googled text abbreviations for their ...
Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water.Solutions of HF are colorless, acidic and highly corrosive.A common concentration is 49% (48-52%) but there are also stronger solutions (e.g. 70%) and pure HF has a boiling point near room temperature.