Write the reaction equation: C → co → ch4 → co 2 → ca co3 → ca o → ca (oh) 2 → (ca oh) 2 so4 → ca so4

univerkov | August 16, 2021 | education

1. Combustion of carbon in a lack of oxygen.
2C + O2 = 2CO.
2. Obtaining methane, catalyst Ni, 150-200 ° C.
CO + 3H2 = CH4 + H2O.
3. Combustion of methane in air.
CH4 + 2O2 = CO2 + 2H2O.
4. Precipitation of calcium carbonate from hydroxide using carbon dioxide.
Ca (OH) 2 + CO2 = CaCO3 + H2O.
5. Thermal decomposition of calcium carbonate.
CaCO3 = CaO + CO2.
6. Slaking of lime.
CaO + H2O = Ca (OH) 2.
7. Formation of a complex salt – calcium hydroxide sulfate.
2Ca (OH) 2 + H2SO4 = (CaOH) 2SO4 + 2H2O.
8. Interaction with alkali to form hydroxide.
(CaOH) 2SO4 + 2NaOH = 2Ca (OH) 2 + Na2SO4.
Hydroxide forms sulfate with sulfuric acid.
Ca (OH) 2 + H2SO4 = CaSO4 + 2H2O.

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