2 HCl + Ca(HCO3)2 → 2 H2O + 2 CO2 + CaCl2 – Balanced equation

Or you want a quick look:

This is a gas evolution reaction, CO2 is the formed gas.

Reactants:

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  • HClChlorane , Hydrogen chloride
    • Other names: Hydrochloric acid , M , Uriatic acid
    • Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]
  • Ca(HCO3)2

    Products:

    • H2OWater, oxidane
      • Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide
      • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas
    • CO2
      • Names: Carbon dioxide , {{plainlist| , CO2
      • Appearance: Colorless gas ; Odourless colourless compressed liquefied gas ; Colorless, odorless gas. [Note: Shipped as a liquefied compressed gas. Solid form is utilized as dry ice.]
    • CaCl2Calcium chloride
      • Other names: Calcium(II) chloride , Calcium dichloride , E509
      • Appearance: White powder, hygroscopic ; Odourless hygroscopic colourless or white crystals
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