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Z Sym Element Pair 1 Pair 2 Note 1 H: Hydrogen Removed as common 2 He: Helium / ˈ h iː l i ə m / HEE-lee-əm: 3 Li: Lithium / ˈ l ɪ θ i ə m / LITH-ee-əm: 4 Be: Beryllium / b ə ˈ r ɪ l i ə m / bə-RIL-ee-əm
Mercury barometer. A millimetre of mercury is a manometric unit of pressure, formerly defined as the extra pressure generated by a column of mercury one millimetre high. . Currently, it is defined as exactly 133.322 387 415 pascals, or approximately 1 torr ( = = , =
Quantities, Units and Symbols in Physical Chemistry, also known as the Green Book, is a compilation of terms and symbols widely used in the field of physical chemistry. It also includes a table of physical constants , tables listing the properties of elementary particles , chemical elements , and nuclides , and information about conversion ...
Phthalimidoperoxycaproic acid (ε-or 6-(phthalimido)peroxyhexanoic acid, abbreviated as PAP) is a synthetic organic peroxy acid derived from caprolactam and phthalic anhydride. [2]
Toggle the table of contents. IPA vowel chart with audio. 6 languages.
An experiment for the preparation of mercuric oxide was first described by 11th century Arab-Spanish alchemist, Maslama al-Majriti, in Rutbat al-hakim. [6] It was historically called red precipitate (as opposed to white precepitate being the mercuric amidochloride).
A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.
Cummingtonite (/ ˈ k ʌ m ɪ ŋ t ə n aɪ t / KUM-ing-tə-nyte) is a metamorphic amphibole with the chemical composition (Mg,Fe 2+ 2 (Mg,Fe 2+ 5 Si 8 O 22 (OH) 2, magnesium iron silicate hydroxide.