Question

Срочно! 1)Mg➡MgO➡MgCl2➡Mg(OH)2➡MgSO4 2)C➡CO2➡CaCO3➡CO2➡ Na2CO3

Answer 1

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Answer 2

The reactions you provided seem to be incomplete or incorrect in some parts. Let me correct and complete them for you:

1. Mg ➡ MgO ➡ Mg(OH)2 ➡ MgSO4

Explanation: a) Mg (Magnesium) reacts with oxygen (O2) to form MgO (Magnesium Oxide). b) MgO reacts with hydrochloric acid (HCl) to form MgCl2 (Magnesium Chloride). c) MgCl2 reacts with sodium hydroxide (NaOH) to form Mg(OH)2 (Magnesium Hydroxide). d) Mg(OH)2 reacts with sulfuric acid (H2SO4) to form MgSO4 (Magnesium Sulfate).

2. C ➡ CO2 ➡ CaCO3 ➡ CaO ➡ Ca(OH)2 ➡ Na2CO3

Explanation: a) C (Carbon) reacts with oxygen (O2) to form CO2 (Carbon Dioxide). b) CO2 reacts with calcium hydroxide (Ca(OH)2) to form calcium carbonate (CaCO3). c) CaCO3 decomposes at high temperatures to form CaO (Calcium Oxide) and CO2. d) CaO (Calcium Oxide) reacts with water (H2O) to form Ca(OH)2 (Calcium Hydroxide). e) Ca(OH)2 reacts with sodium carbonate (Na2CO3) to form sodium hydroxide (NaOH) and calcium carbonate (CaCO3).

Please note that some of the reactions might require specific conditions (e.g., temperature, pressure, catalysts) for them to occur effectively. Also, the equation for the formation of Na2CO3 from Ca(OH)2 and Na2CO3 seems to be missing or incorrect. If you meant something else, please clarify the reaction, and I'll be happy to help.