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oh    音标拼音: ['o]
int. (表示惊讶,恐怖,赞叹)哦!

OH
n 1: a midwestern state in north central United States in the
Great Lakes region [synonym: {Ohio}, {Buckeye State}, {OH}]

Oh \Oh\ ([=o]), interj. [See {O}, interj.]
An exclamation expressing various emotions, according to the
tone and manner, especially surprise, pain, sorrow, anxiety,
or a wish. See the Note under {O}.
[1913 Webster]


-ol \-ol\ (-[=o]l or -[o^]l) suff. [From alcohol.] (Chem.)
A suffix denoting that the substance in the name of which it
appears belongs to the series of alcohols or hydroxyl
derivatives, as ethanol, carbinol, phenol, glycerol, etc.
Such compounds contain the hydroxy radical ({-OH}).
[1913 Webster PJC]


molecular formula \mo*lec"u*lar form"u*la\, n. (Chem.)
An expression representing the composition of elements in a
chemical substance, commonly consisting of a series of
letters and numbers comprising the atomic symbols of each
element present in a compound followed by the number of atoms
of that element present in one molecule of the substance.
Thus the molecular formula for common alcohol (ethyl alcohol)
is {C2H6O}, meaning that each molecule contains two carbon
atoms, six hydrogen atoms, and one oxygen atom. The molecular
formula may be written to provide some indication of the
actual structure of the molecule, in which case structural
units may be written separately. Thus, ethyl alcohol can also
be written as {CH3.CH2.OH} or {CH3-CH2-OH}, in which the
period or dash between functional groups indicates a single
bond between the principle atoms of each group. This formula
shows that in ethyl alcohol, the carbon of a methyl group
({CH3-}) is attached to the carbon of a methylene group
({-CH2-}), which is attached to the oxygen of a hydroxyl
group ({-OH}). A {structural formula} is a graphical
depiction of the relative positions of atoms in a molecule,
and may be very complicated.
[PJC]


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  • What is the product of the following reaction? 1)CH_3 OH - Socratic
    These are ostensibly acid-base reactions For ammonium we could write NH_4^+ +HO^(-) rarr NH_3(aq) + H_2O(l) For methanol, the acid base reaction would proceed
  • Can you give the IUPAC name for the following (CH_3)_3C-OH . . . - Socratic
    So this is a propanol derivative: "2-methylpropan-2-ol" For "isopropyl alcohol", H_3C-CH (OH)CH_3, the longest chain is again three carbons long, and C2 is substituted by -OH, so "propan-2-ol" I think this is right, and I haven't broken any arcane rule Both names seem to be unambiguous
  • Question #6f366 - Socratic
    Here's what I get > The reaction is a simple proton transfer from the acid to the amine to form an ammonium salt The equation for the salt formation is underbrace
  • Question #ba7a1 - Socratic
    See explanation Roughly speaking, we have the following facts: [H_3O^+] * [OH^-] = 10^(-14) pH = -log_10 [H_3O^+] pOH = -log_10 [OH^-] { (pH < 7 " acidic"), (pH
  • Question #851e9 + Example - Socratic
    The equation for this is: H^+ (aq)+OH^ (-) (aq)rightleftharpoonsH_2O (l) A common example of a neutralization reaction would be adding hydrochloric acid to aqueous sodium hydroxide
  • Question #bb4d7 - Socratic
    Since there are both H^+ and OH^- ions in water, bicarbonate ions get hydrated really quickly to form carbonic acid, and the equation is HCO_3^ (-)+H^+rightleftharpoonsH_2CO_3 Know that, carbonic acid is a weak acid This leaves OH^- in excess, and they bond with Na^+ ions to form sodium hydroxide (NaOH), a strong base
  • Answers created by Paul - Socratic
    Q A and Videos that make learning easy Math, History, Chemistry, Algebra, Calculus, Biology and more
  • Question #53967 - Socratic
    a HI (aq) rarr H^ (+) + I^- b HNO_3 (aq) rarr H^ (+) + NO_3^- c Ba (OH)_2 (aq) rarr Ba^ (2+) + 2HO^- "Hydrogen iodide" is in fact a very strong acid; as is "nitric acid", HNO_3 (in fact the former is a stronger acid than the latter!)
  • Question #627ef - Socratic
    functional groups like -OH, -CHO,-CO- are present in carbohydrates commonly two functional are present in a carbohydrate,-OH and -CHO, or -OH and-CO- Aldose shows different reactions and test like Tollen's silver mirror test, felling's test different types of reactions are also shown by carbohydrates like Osazone synthesis, length increasing reaction, oxidation reactions These are all due
  • Question #019dd - Socratic
    Only (C) is fully correct As you can see, steam typically reacts with alkenes by adding H on one double-bonded atom and OH on the other But there are two possible choices for which atom gets the single hydrogen atom and which gets the OH group In some cases like (A) there is a perference (the Markovnikov rule), but the only sure way to get 100% of one product is to have the double bond in





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