Make the equation: Na2CO3- CO2- CaCO3- Ca (HCO3) 2

Let’s write down the reaction equations:
Na2CO3 + 2HCl = 2NaCl + H2O + CO2 – ion exchange;
CO2 + CaO = CaCO3 – compounds, the reaction product of calcium carbonate;
CaCO3 + CO2 + H2O = Ca (HCO3) 2 – compounds, calcium bicarbonate is formed.
According to the content of calcium bicarbonate salt in drinking water, the standards of consumed water are calculated. The reaction equations show the genetic relationship between acidic oxide and salts. Salts – carbonates are used in the composition of cement in construction.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.