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Calcium ions are neutral and hydrogencarbonate ions are: (!!) BOTH acid AND base at the same time, both very weakly, though it is a bit more base than acidic:

  • acid: HCO3- + H2O --> CO32- + H3O+ pKa=10.25
  • base: HCO3- + H2O -->H2CO3 + OH- pKb= 7.64
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13y ago
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5mo ago

Calcium hydrogencarbonate is a basic salt. It forms when carbon dioxide reacts with a mixture of water and calcium carbonate, resulting in a basic solution.

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13y ago

Calcium hydroxide would be a base. It would dissociate into Ca2+ and two OH- ions when dissolved into water.

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14y ago

Ca(OH)2 (calcium hydroxide) is a strong base (which means it cannot be an acid). It is formed by mixing CaO (quicklime, or calcium oxide) with H2O (water).

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13y ago

Calcium Hydroxide is quite alkaline.

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12y ago

Base

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13y ago

alkali

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Q: Is calcium hydrogencarbonate an acid base or neutral?
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