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  2. Dihydrogen monoxide parody - Wikipedia

    en.wikipedia.org/wiki/Dihydrogen_monoxide_parody

    Dihydrogen monoxide is a name for the water molecule, which comprises two hydrogen atoms and one oxygen atom (H 2 O).. The dihydrogen monoxide parody is a parody that involves referring to water by its unfamiliar chemical systematic name "dihydrogen monoxide" (DHMO, or the chemical formula H 2 O) and describing some properties of water in a particularly concerning manner — such as the ...

  3. Hydroxy group - Wikipedia

    en.wikipedia.org/wiki/Hydroxy_group

    Sulfuric acid contains two hydroxy groups.. Water, alcohols, carboxylic acids, and many other hydroxy-containing compounds can be readily deprotonated due to a large difference between the electronegativity of oxygen (3.5) and that of hydrogen (2.1).

  4. Properties of water - Wikipedia

    en.wikipedia.org/wiki/Properties_of_water

    Water is amphoteric: it has the ability to act as either an acid or a base in chemical reactions. [87] According to the Brønsted-Lowry definition, an acid is a proton (H +) donor and a base is a proton acceptor. [88] When reacting with a stronger acid, water acts as a base; when reacting with a stronger base, it acts as an acid. [88]

  5. Hydroxyl radical - Wikipedia

    en.wikipedia.org/wiki/Hydroxyl_radical

    The hydroxyl radical can damage virtually all types of macromolecules: carbohydrates, nucleic acids , lipids (lipid peroxidation) and amino acids (e.g. conversion of Phe to m-Tyrosine and o-Tyrosine). The hydroxyl radical has a very short in vivo half-life of approximately 10 −9 seconds and a high reactivity. [5]

  6. Self-ionization of water - Wikipedia

    en.wikipedia.org/wiki/Self-ionization_of_water

    If an impurity is an acid or base, this will affect the concentrations of hydronium ion and hydroxide ion. Water samples that are exposed to air will absorb some carbon dioxide to form carbonic acid (H 2 CO 3) and the concentration of H 3 O + will increase due to the reaction H 2 CO 3 + H 2 O = HCO 3 − + H 3 O +.

  7. Hydroxyl value - Wikipedia

    en.wikipedia.org/wiki/Hydroxyl_value

    The analytical method used to determine hydroxyl value traditionally involves acetylation of the free hydroxyl groups of the substance with acetic anhydride in pyridine solvent. After completion of the reaction, water is added, and the remaining unreacted acetic anhydride is converted to acetic acid and measured by titration with potassium ...

  8. Water - Wikipedia

    en.wikipedia.org/wiki/Water

    Water is also central to acid-base neutrality and enzyme function. An acid, a hydrogen ion (H +, that is, a proton) donor, can be neutralized by a base, a proton acceptor such as a hydroxide ion (OH −) to form water. Water is considered to be neutral, with a pH (the negative log of the hydrogen ion concentration) of 7 in an ideal state.

  9. Hydroxide - Wikipedia

    en.wikipedia.org/wiki/Hydroxide

    The hydroxide itself is insoluble in water, with a solubility product log K* sp of −11.7. Addition of acid gives soluble hydrolysis products, including the trimeric ion [Be 3 (OH) 3 (H 2 O) 6] 3+, which has OH groups bridging between pairs of beryllium ions making a 6-membered ring. [17] At very low pH the aqua ion [Be(H 2 O) 4] 2+ is formed.