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DARkur
@DARkur
July 2022
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Kostya5555
1. 1) Fe+2HCl=FeCl2+H2↑
2) FeCl2+2KOH=Fe(OH)2↓+2KCl
3) Fe(OH)2↓+2HCl=FeCl2+2H2O
4) 4Fe(OH)2+O2+2H2O=4Fe(OH)3
2. 1) FeCl3+3NaOH=Fe(OH)3↓+3NaCl
2) Fe(OH)3↓+3HCl=FeCl3+3H2O
3) 2Fe(OH)3=(t)=Fe2O3+3H2O
3. 1) Al2(SO4)3+3Ca(OH)2(м.)=2Al(OH)3↓+3CaSO4(м.)
2) Al(OH)3↓+3HCl=AlCl3+3H2O
3) Al(OH)3=(t)=Al2O3+3H2O
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Answers & Comments
2) FeCl2+2KOH=Fe(OH)2↓+2KCl
3) Fe(OH)2↓+2HCl=FeCl2+2H2O
4) 4Fe(OH)2+O2+2H2O=4Fe(OH)3
2. 1) FeCl3+3NaOH=Fe(OH)3↓+3NaCl
2) Fe(OH)3↓+3HCl=FeCl3+3H2O
3) 2Fe(OH)3=(t)=Fe2O3+3H2O
3. 1) Al2(SO4)3+3Ca(OH)2(м.)=2Al(OH)3↓+3CaSO4(м.)
2) Al(OH)3↓+3HCl=AlCl3+3H2O
3) Al(OH)3=(t)=Al2O3+3H2O