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2. Gibbs–Helmholtz equation - Wikipedia

   en.wikipedia.org/wiki/Gibbs–Helmholtz_equation

   The definition of the Gibbs function is = + where H is the enthalpy defined by: = +. Taking differentials of each definition to find dH and dG, then using the fundamental thermodynamic relation (always true for reversible or irreversible processes): = where S is the entropy, V is volume, (minus sign due to reversibility, in which dU = 0: work other than pressure-volume may be done and is equal ...

3. Formula unit - Wikipedia

   en.wikipedia.org/wiki/Formula_unit

   In chemistry, a formula unit is the smallest unit of a non-molecular substance, such as an ionic compound, covalent network solid, or metal. [1] [2] It can also refer to the chemical formula for that unit. Those structures do not consist of discrete molecules, and so for them, the term formula unit is used.

4. Chemical formula - Wikipedia

   en.wikipedia.org/wiki/Chemical_formula

   A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.

5. Hectogram - Wikipedia

   en.wikipedia.org/wiki/Hectogram

   Hectogram or hectogramme may refer to: a unit of mass; a 100 sided star polygon This page was last edited on 7 February 2023, at 10:55 (UTC). Text is available ...

6. Orders of magnitude (mass) - Wikipedia

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

   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 zeptogram 10 21 g Zg zettagram 10 ...

7. Eight killed and 17 injured in mass stabbing in eastern China

   www.aol.com/eight-killed-17-injured-mass...

   Eight people were killed and 17 others injured in a stabbing attack on a college campus in eastern China on Saturday, police said — the latest in a recent spate of attacks that has shaken a ...

8. Glossary of chemical formulae - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_chemical_formulae

   Chemical formula Synonyms CAS number CAgO carbonylsilver: CCl 2 F 2: dichlorodifluoromethane freon-12: 75-71-8 CCl 4: carbon tetrachloride tetrachloromethane: 56-23-5 C(CN) 4: tetracyanomethane: 24331-09-7 CFCl 3: trichlorofluoromethane freon-11: 75-69-4 CFCl 2 CF 2 Cl: chlorotrifluoromethane freon-13: 75-72-9 CHCl 3: chloroform ...

9. AOL

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   AOL