Question: 19. Which equation represents the charge balance equation for the dissolution of CaCO3 in aqueous solution. (A) [Ca2+]=[HCO3]+[CO32] (B) 2[Ca2]+[H]=[OH2]+2[CO32] (C) [Ca2+]+[H+]=[OH]+[HCO3]+[CO32] (D) 2[Ca2+]+[H]=[OH]+[HCO3]+2[CO32]

19. Which equation represents the charge balance equation for the dissolution of CaCO3 in aqueous solution. (A) [Ca2+]=[HCO3]+[CO32] (B) 2[Ca2]+[H]=[OH2]+2[CO32] (C) [Ca2+]+[H+]=[OH]+[HCO3]+[CO32] (D) 2[Ca2+]+[H]=[OH]+[HCO3]+2[CO32]

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