Question

Гидрокарбонат кальция>карбонат кальция>оксид кальция>нитрат кальция

Answer 1

Ca(HCO3)2 = CaCO3 + CO2 + H2O

CaCO3 = CaO + CO2

CaO + 2HNO3 = Ca(NO3)2 + H2O

Answer 2

Chemical Reactions of Calcium Compounds

When comparing the reactivity of different calcium compounds, it's important to consider their chemical properties and how they interact in various reactions.

Hydrogen Carbonate of Calcium (Ca(HCO3)2) is a compound that forms when calcium carbonate reacts with water containing carbon dioxide. It is commonly found in mineral springs and is also known as calcium bicarbonate. When heated, it decomposes to form calcium carbonate, water, and carbon dioxide.

Calcium Carbonate (CaCO3) is a common substance found in rocks as the minerals calcite and aragonite. It is the main component of shells of marine organisms, snails, coal balls, pearls, and eggshells. It is used in the construction industry as a building material and as a white pigment in various products.

Calcium Oxide (CaO), also known as quicklime, is a widely used chemical compound. It is a key ingredient in the process of making cement and is also used to neutralize acidic soils.

Calcium Nitrate (Ca(NO3)2) is a common fertilizer. It is also used in waste water pre-conditioning for odour emission prevention.

The reactivity of these compounds can be compared based on their chemical properties and their behavior in various reactions. The reactivity of a compound can be influenced by factors such as its stability, solubility, and the nature of the chemical reactions it undergoes.