Sentence Examples


  • - Organic acids are characterized by the presence of the monovalent group - CO.
  • Group I.: the alkali metals Li, Na, K, Rb, Cs, and also Ag, monovalent; Cu, monovalent and divalent; Au, monovalent and trivalent.
  • Cu, Ag (when monovalent); Au.
  • NITRO COMPOUNDS, in organic chemistry, compounds containing the monovalent radical -NO 2 directly combined with carbon.
  • Most metals form carbonates (aluminium and chromium are exceptions), the alkali metals yielding both acid and normal carbonates of the types Mhco 3 and M 2 CO 3 (M = one atom of a monovalent metal); whilst bismuth, copper and magnesium appear only to form basic carbonates.
 

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