Complete characteristics of the CaCO3 substance.
| December 21, 2020 | education
CaCO3 – calcium carbonate (trivial names: marble, limestone)
CaCO3 is a medium salt formed by a strong base Ca (OH) 2 and a weak acid H2CO3
Physical properties: solid, white crystals, insoluble in water. Weakly conduct electric current (is a weak electrolyte)
Chemical properties:
1) Reacts with acids
CaCO3 + 2HCl = CaCl2 + H2O + CO2
2) Decomposes on ignition
CaCO3 = CaO + CO2
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