Podam metode otrzymywania (coś pododawać, wyrównać strony itd.)
Fe2O3
FeO
NaOH
Ca(OH)2
H2SO4
HCl
NaCl
CaCO3
Pomocy !!!
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2Fe(OH)₃→ Fe₂O₃+ 3H₂O
FeO
2 Fe + O₂ -----> 2FeO
NaOH
Na₂O + H₂O ------> 2NaOH
Ca(OH)₂
CaO + H₂O --------> Ca(OH)₂
H₂O₄
SO₃ + H₂O ------> H₂SO₄
HCl
H₂ + Cl₂ ----------> 2HCl
NaCl
NaOH + HCl -----> NaCl + H₂O
CaCO₃
CaO + CO₂ -----> CaCO₃