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Taniusha995
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Ex.1
1)...+H₂O→NaOH
2)...+H₂O→Ca(OH)₂
3)CuSO₄+...→Cu(OH)²↓+...
4)FeCl₃+...→Fe(OH)³↓+...
Ex.2
1)Na+H2O→?+H₂↑
2)Na₂SO₄+Ba(OH)₂→?+?
3)CuCl₂+Ca(OH)₂→?+?
4)BaO+H₂O→?

Răspuns :

1.Na2O+H2O=2NaOH
2.CaO+H2O=Ca(OH)2
3.CuSO4+2NaOH=Cu(OH)2+Na2SO4
4.FeCl3+3NaOH=Fe(OH)3+3NaCl.
ex2 :
1.Na+H2O=NaOH+1/2H2
2.Na2SO4+Ba(OH)2=BaSO4+NaOH .
3.CuCl2+Ca(OH)2=CaCl2+Cu(OH)2.
4.BaO+H2O=Ba(OH)2

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