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Dashа7
@Dashа7
July 2022
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Решите уравнение реакций.
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svetka1574
1) C + O2 -> CO2
CO2 + 2NaOH -> Na2CO3 + H2O
Na2CO3 + CaCl2 -> CaCO3 + 2NaCl
CO2 + CaO -> CaCO3
CaCO3 + 2HCl -> CaCl2 + CO2 + H2O
2) 4Na + O2 -> 2Na2O
2Na + 2H2O -> 2NaOH + H2
Na2O + H2O -> 2NaOH
2NaOH + H2SO4 -> Na2SO4 + 2H2O
Na2SO4 + Ba(OH)2 -> BaSO4 + 2NaOH
3) S + O2 -> SO2
SO2 + 2NaOH -> Na2SO3 + H2O
Na2SO3 + CaCl2 -> CaSO3 + 2NaCl
CaSO3 + 2HCl -> CaCl2 + SO2 + H2O
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Farrux5
1)
C + O2 = CO2
CaO + CO2 = CaCO3
CaCO3 = CaO + CO2
Na2O + CO2 = Na2CO3
Na2CO3 + Ca(OH)2 = CaCO3 + 2NaOH
2)
4Na + O2 = 2Na2O
Na2O + H2O = 2NaOH
2NaOH + H2SO4 = Na2SO4 + 2H2O
Na2SO4+Ba(OH)2=2NaOH+BaSO4
3)
S + O2 = SO2
SO2 + Na2O = Na2SO3
Na2SO3 + CaO = CaSO4 + 2Na
2CaSO4 = 2CaO + 2SO2 + O2
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Answers & Comments
CO2 + 2NaOH -> Na2CO3 + H2O
Na2CO3 + CaCl2 -> CaCO3 + 2NaCl
CO2 + CaO -> CaCO3
CaCO3 + 2HCl -> CaCl2 + CO2 + H2O
2) 4Na + O2 -> 2Na2O
2Na + 2H2O -> 2NaOH + H2
Na2O + H2O -> 2NaOH
2NaOH + H2SO4 -> Na2SO4 + 2H2O
Na2SO4 + Ba(OH)2 -> BaSO4 + 2NaOH
3) S + O2 -> SO2
SO2 + 2NaOH -> Na2SO3 + H2O
Na2SO3 + CaCl2 -> CaSO3 + 2NaCl
CaSO3 + 2HCl -> CaCl2 + SO2 + H2O
C + O2 = CO2
CaO + CO2 = CaCO3
CaCO3 = CaO + CO2
Na2O + CO2 = Na2CO3
Na2CO3 + Ca(OH)2 = CaCO3 + 2NaOH
2)
4Na + O2 = 2Na2O
Na2O + H2O = 2NaOH
2NaOH + H2SO4 = Na2SO4 + 2H2O
Na2SO4+Ba(OH)2=2NaOH+BaSO4
3)
S + O2 = SO2
SO2 + Na2O = Na2SO3
Na2SO3 + CaO = CaSO4 + 2Na
2CaSO4 = 2CaO + 2SO2 + O2