Відповідь:
3H2SO4+2Cr(OH)3 = Cr2(SO4)3+6H2O
SiO2+2NaOH = Na2SiO3+H2O
K2O+H2O = 2KOH
2NaOH+FeCl2 = Fe(OH)2+2NaCl
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Verified answer
Відповідь:
3H2SO4+2Cr(OH)3 = Cr2(SO4)3+6H2O
SiO2+2NaOH = Na2SiO3+H2O
K2O+H2O = 2KOH
2NaOH+FeCl2 = Fe(OH)2+2NaCl