What is Be(OH)2? Important knowledge about Be(OH)2.

  1. Definition of Be(OH)2:
    1.1. Name: Be(OH)2 is called Beryllium hydroxide.
    1.2. English name: Beryllium hydroxide.
    1.3. Atomic composition: Be(OH)2 consists of 1 atom of Be, 2 atoms of O, and 2 atoms of H.
    1.4. The atomic mass of Be is 9, O is 16 and H is 1. Therefore, the atomic mass of Be(OH)2 is 9 + 2(16 + 1) -> 43atomicmassunits.
    1.5. Molecular Structure: Be(OH)2 is a composite molecule consisting of 1 atom of Be and 2 hydroxide groups (OH).
    1.6. Ion Structure: Be(OH)2 can form Be2+ ion and 2 OH- ions in aqueous solution.

  2. Properties of Be(OH)2:
    2.1. Physical properties: Be(OH)2 is a solid, colorless, odorless substance with a neutral pH.
    2.2. Chemical properties: Be(OH)2 is insoluble in water but can dissolve in acid to form salts.

  3. Common chemical equations:
    3.1. Be(OH)2 + 2HCl -> BeCl2 + 2H2O: Beryllium hydroxide reacts with hydrochloric acid to form beryllium chloride and water.

  4. Preparation of Be(OH)2:
    4.1. Be + 2H2O -> Be(OH)2 + H2: Beryllium reacts with water to form beryllium hydroxide and hydrogen gas.
    4.2. BeCl2 + 2NaOH -> Be(OH)2 + 2NaCl: Beryllium chloride reacts with sodium hydroxide to form beryllium hydroxide and sodium chloride.

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