Question

Выучить химические свойства оксидов ( схема записана на уроке в тетрадь) .Допишите уравнения химических реакций; 1)Ca+H2O= 2)CaO+H2O= 3) CaO+HCl= 4)CaO+CO2= 5)SO2+H2O= 6)BaO+SO2= 7)H2O+SO2= 8) Fe(OH)2= 9)Fe+O2= 10)H2O+P2O5= Пожалуйста очень срочно надо

Answer 1

1)Ca+2H2O= Ca(OH)2 + H2

2)CaO+H2O= Ca(OH)2

3) CaO+2HCl= CaCl2 + H2O

4)CaO+CO2= CaCo3

5)SO2+H2O= H2So3

6)BaO+SO2= BaSo3

7)H2O+SO2= H2So4, H2So3

8) Fe(OH)2= FeO+H2O

9)Fe+O2= FeO, Fe2O3

10)3H2O+P2O5=2 H3Po4

Answer 2

1) $Ca + 2H_{2}O = Ca(OH)_{2} + H_{2}$

2) $CaO + 2H_{2}O = Ca(OH)_{2}$

3) $CaO + 2HCl = CaCl_{2} + H_{2}O$

4) $CaO + CO_{2} = CaCO_{3}$

5) $SO_{2} + 2H_{2}O = H_{2}SO_{3}$

6) $BaO + SO_{2} = BaSO_{3}$

7) $SO_{2} + H_{2}O = H_{2}SO_{3}$

8) $Fe(OH)_{2} = H_{2}O + FeO$

9) $4Fe + 3O_{2} = 2Fe_{2}O_{3}$

10) $3H_{2}O + P_{2}O_{5} = 2H_{3}PO_{4}$