Question

Be=beo=becl2=be(oh)2=be(no3)2

Answer 1

2Be+O2 --- 2BeO
BeO+2HCl --- BeCl2 + H2O
BeCl2+2NaOH --- Be(OH)2 + 2NaCl
Be(OH)2+2HNO3 --- Be(NO3)2 + 2H2O

Answer 2

It appears that you've listed several chemical compounds and their chemical formulas that all contain the element beryllium (Be). Let me clarify each of them:

1. Be (Beryllium): This is the chemical symbol for the element beryllium. Beryllium is a chemical element with the atomic number 4 and is represented by the symbol Be.

2. BeO (Beryllium Oxide): BeO is the chemical formula for beryllium oxide, which is a compound composed of beryllium and oxygen. It is often used in various industrial applications.

3. BeCl2 (Beryllium Chloride): BeCl2 is the chemical formula for beryllium chloride, a compound made up of beryllium and chlorine atoms. It is a white, crystalline solid.

4. Be(OH)2 (Beryllium Hydroxide): Be(OH)2 is the chemical formula for beryllium hydroxide, which is a compound composed of beryllium, hydrogen, and oxygen. It is an alkaline compound.

5. Be(NO3)2 (Beryllium Nitrate): Be(NO3)2 is the chemical formula for beryllium nitrate, a compound that contains beryllium and nitrate ions. It is a source of beryllium in chemical reactions.

Each of these compounds has distinct chemical properties and uses due to the different elements they are composed of. Beryllium itself is a lightweight metal known for its low density and excellent stiffness, but it is also toxic when inhaled as dust or fumes, so proper handling precautions are necessary when working with beryllium and its compounds.