Write the reaction equation: a) Mg – MgO – MgCl2 – Mg (OH) 2 – MgO b) C – CO2 – Na2CO3 – Na2SO4 – BaSO4
| September 7, 2021 | education
А. 2Mg + O2 = 2MgO.
MgO + 2HCl = MgCl2 + H2O.
MgCl2 + 2NaOH = Mg(OH)2 + 2NaCl.
Mg(OH)2 = (t) MgO + H2O.
B. C+ O2 = CO2.
CO2 + Na2O = Na2CO3.
Na2CO3 + H2SO4 = Na2SO4 + H2O + CO2 газ.
Na2SO4 + BaCl2 = BaSO4 осадок + 2NaCl.
CO2 + Na2O = Na2CO3.
Na2CO3 + H2SO4 = Na2SO4 + H2O + CO2 газ.
Na2SO4 + BaCl2 = BaSO4 осадок + 2NaCl.
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