w mioejsce kropek wpisac wzory chemiczne i dobrac współczynnik a) H_{2}S+..............................CaS+H_{2}O B) H_{2}SO_{4}+...............................Al_{2}(SO_4)3+H_2 C) Al_2O_3+....................................Al(NO_3)_3+H_2O d)Zn+...................................ZnCl_2 E)Zn+.................................ZnCl_2+H_2
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a)
b)
c)
d)
e)
a) H₂S + CaO ---> CaS + H₂O
b) 3H₂SO₄ + 2Al ---> Al₂(SO₄)₃ + 3H₂
c) Al₂O₃ + 6HNO₃ ---> 2Al(NO₃)₃ + 3H₂O
d) Zn + Cl₂ ---> ZnCl₂
e) Zn + 2HCl ---> ZnCl₂ + H₂