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(1) (V N) CaC03 + 2HCl caC12 + 1-120 C02 ( 5 ) caF2 + H2S04 CaS04 + 2HF (Z) cu + 4HN03 —Y + 21420 + 2N02 (5) 2NaHC03 (Y) 2NH4Cl + caC12 + 2H20 + 2NH3 (ö) CH3COONa + NaOH Na2C03

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