C--->CO2--->NA2CO3--->CO2--->CACO3 CA--->CAO--->CASO4--->CAO FE(SO4)3--->FE(OH)3--->FE2O3--->FECL3 ПОМАГИТЕЕ
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C--->CO2--->NA2CO3--->CO2--->CACO3 CA--->CAO--->CASO4--->CAO FE(SO4)3--->FE(OH)3--->FE2O3--->FECL3 ПОМАГИТЕЕ
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Answers & Comments
1. C + O2 = CO2
CO2 + Na2O = Na2CO3
Na2CO3 = Na2O + CO2
CO2 + Ca(OH)2 = CaCO3 + H2O
2. 2Ca + O2 = 2CaO
CaO + H2SO4 = CaSO4 + H2O
2CaSO4 = 2CaO + 2SO2 + O2
3. Fe2(SO4)3 + 6NaOH = 3Na2SO4 + 2Fe(OH)3
2Fe(OH)3 = Fe2O3 + 3H2O
Fe2O3 + 6HCl = 2FeCl3 + 3H2O