Mimi /mi-mi/ [2 sylls.] as a girls' name is pronounced MEE-mee. It is of French origin. Pet name for Marilyn or Miriam. Also used as a Spanish pet name for Mira, Maria, and Noemi.First used by parents after the appearance of Puccini's famous opera La Boh me and its tragic heroine Mimi.Actress Mimi Rogers.et name for Marilyn or Miriam. Also used as a Spanish pet name for Mira, Maria, and Noemi. First used by parents after the appearance of Puccini's famous opera La Boh me and its tragic heroine Mimi. Actress Mimi Rogers.
The hydronium ion is a polyatomic ion that forms when an acid releases a proton (H+) to a water molecule.he hydronium ion is a polyatomic ion that forms when an acid releases a proton (H+) to a water molecule.
pH Scale. Hydrogen ions don't actually float around independently; whenever they're in water, hydrogen ions quickly combine with H2O to form hydronium ions, which have the formula H3O+. Hydrogen ion concentration, then, is really hydronium ion concentration; chemists use the two terms almost interchangeably.