Ответ:
4P+5O₂ =2P₂O₅
P₂O₅ +3H₂O = 2H₃PO₄
2H₃PO₄+ 3CaO = Ca₃(PO₄)₂+3H₂O
2H₂O+2Na = 2NaOH+ H₂
3NaOH + H₃PO₄ = Na₃PO₄ + 3H₂O
7. Si +O₂ = SiO₂
SiO₂ + 2NaOH = Na₂SiO₃ + H2O
Na₂SiO₃ + 2HCl = 2NaCl + H₂SiO₃
H₂SiO₃ = SiO₂ + H₂O
SiO₂+ Li₂O = Li₂SiO₃
8. 2 Ca + O₂ = 2CaO
CaO + CO₂ = CaCO₃
CaCO₃ + 2HCl =CaCl₂ + CO₂↑ + H₂O
CaCl₂ + 2NaOH = Ca(OH)₂ +2NaCl
Ca(OH)₂ + Na₂CO₃ = CaCO₃ + 2NaOH
9. N₂O₅ + H₂O = 2HNO₃
2HNO₃+ CaO = Ca(NO₃)₂ + H₂O
Ca(NO₃)₂ + Na₂CO₃ = CaCO₃ + 2NaNO₃
CaCO₃ + 2KNO₃ = Ca(NO₃)₂ + K₂CO₃
Ca(NO₃)₂+ Ba(OH)₂ = Ca(OH)₂ + Ba(NO₃)₂
10. Mg(OH)₂ = MgO + H₂O
MgO + Na₂CO₃ = MgCO₃ + Na₂O
MgCO₃ + 2HCl = MgCl₂ + CO₂↑ + H₂O
MgCl₂ + 2KNO₃ = Mg(NO₃)₂ + 2KCl
3Mg(NO₃)₂ + 2Na₃PO₄ = Mg₃(PO₄)₂ + 6NaNO₃
Объяснение: