Question

CaO+CO2=? CaCO3+HCl=?

Answer 1

CaO + CO2 — CaCO3
CaCO3 + 2HCl — CaCl2 + H2O + CO2

Answer 2

CaO+CO₂⇒CaCO₃
CaCO₃+2HCl⇒CaCl₂+CO₂+H₂O

Answer 3

Chemical Reactions:

CaO + CO2 = CaCO3

The chemical reaction for the formation of calcium carbonate (CaCO3) from calcium oxide (CaO) and carbon dioxide (CO2) is as follows: CaO + CO2 = CaCO3

This reaction is a key process in the formation of calcium carbonate, which is a common substance found in rocks, shells, and pearls.

CaCO3 + HCl = ?

The reaction of calcium carbonate (CaCO3) with hydrochloric acid (HCl) results in the formation of calcium chloride (CaCl2), carbon dioxide (CO2), and water (H2O). The balanced chemical equation for this reaction is: CaCO3 + 2HCl = CaCl2 + CO2 + H2O

This reaction is often used in various chemical experiments and industrial processes [[7]](https://mzz.misis.ru/wp-content/uploads/2015/09/Himiya_3_vyvod.pdf).

These chemical reactions are fundamental in understanding the behavior of different compounds and their interactions in various contexts.