Question

K2CO3 → CO2 → H2CO3 → MgCO3.​

Answer 1

Ответ:

Объяснение:

K2CO3 + 2HCl = 2KCl + CO2↑ + H2O

CO2 + H2O= H2CO3

H2CO3 + MgO = MgCO3 + H2O

Answer 2

The given chemical equation appears to describe a series of reactions involving potassium carbonate (K2CO3) that eventually leads to the formation of magnesium carbonate (MgCO3). Let's break down the reactions step by step:

1. K2CO3 (potassium carbonate) decomposes to form CO2 (carbon dioxide) gas: K2CO3 → CO2 + K2O

2. The produced carbon dioxide (CO2) can dissolve in water (H2O) to form carbonic acid (H2CO3): CO2 + H2O → H2CO3

3. Carbonic acid (H2CO3) reacts with a compound containing magnesium ions (Mg^2+) to produce magnesium carbonate (MgCO3): H2CO3 + Mg^2+ → MgCO3 + H2O

In summary, the overall reaction can be represented as follows:

K2CO3 → CO2 → H2CO3 → MgCO3

Please note that the reactions described here are simplified and do not account for specific conditions or catalysts that may be required for the reactions to occur. Additionally, it's important to consider that in actual chemical reactions, there may be side reactions or other intermediates involved.