Question

К завтрашнему дню срочно(

Answer 1

Be(NO₃)₂ + 2NaOH = Be(OH)₂ + 2NaNO₃
Be(OH)₂ + 2HNO₃ = Be(NO₃)₂ +  2H₂O
2Be(NO₃)₂ = 2BeO + 4NO₂ + O₂
BeO + 2KOH = K₂BeO₂ + H₂O

BaO + H₂O = Ba(OH)₂
Ba(OH)₂ + CO₂ = BaCO₃ + H₂O
BaCO₃ + 2HCl = BaCl₂ + H₂O + CO₂
BaCl₂  + 2AgNO₃ = Ba(NO₃)₂ + 2AgCl
Ba(NO₃)₂  + H₂SO₄ = BaSO₄ + 2HNO₂