Объяснение:
2C + O2 = 2CO↑
CaCO3 = CaO + CO2↑
Na2CO3 + CaCl2 = CaCO3 + 2NaCL
2HCl + Zn = ZnCl2 + H2↑
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Объяснение:
2C + O2 = 2CO↑
CaCO3 = CaO + CO2↑
Na2CO3 + CaCl2 = CaCO3 + 2NaCL
2HCl + Zn = ZnCl2 + H2↑