Question

ХИМИКИ ПОМОГИТЕ! ОСУЩЕСТВИТЬ ЦЕПОЧКУ (РАЗЛОЖИТЬ), КАЖДОЕ ПОЛУЧИВШЕЕСЯ УРАВНЕНИЕ УРАВНЯТЬ И ПОДПИСАТЬ НАЗВАНИЕ ВСЕХ ВЕЩЕСТВ. C--CO2--H2CO3--MgCO3--MgCl2--Mg(OH)2--MgO--Mgразвернуто пожалуйста! очень надо!)))

Answer 1

C → CO₂ → H₂CO₃ → MgCO₃ → MgCl₂ → Mg(OH)₂↓ → MgO → Mg.

C + O₂ = CO₂ (углекислый газ + оксид углерода (VI)).
CO₂ + H₂O = H₂CO₃ (угольная кислота).
H₂CO₃ + Mg(OH)₂ = MgCO₃↓ + H₂O (карбонат магния + вода).
MgCO₃ + HCl = MgCl₂ + CO₂ + H₂O (хлорид магния + углекислый газ + вода).
MgCl₂ + 2NaOH = Mg(OH)₂↓ + 2NaCl (гидроксид магния + хлорид натрия).
Mg(OH)₂ t° → MgO + H₂O (оксид магния + вода).
MgO + C = Mg + CO (магний + оксид углерода (II)).

Answer 2

C+O2=CO2 (углекислый газ)
H2O+CO2=H2CO3 (угольная кислота)
H2CO3+Mg(OH)2=MgCO3 (карбонат магния) +2H2O (вода)
MgCO3+2HCl=MgCl2 (хлорид магния)+H2O(вода)+CO2(углекислый газ)
MgCl2+2KOH=2KCl (хлорид калия)+Mg(OH)2
Mg(OH)2=t=MgO (оксид магния) +H2O(вода)
MgO+H2=H2O(вода)+Mg (магний)

Answer 3

Chemical Reactions in the Given Chain

To break down the given chain of substances and balance the equations, we need to identify the chemical reactions that occur at each step. Let's go through each substance and its corresponding reaction:

1. C (Carbon) to CO2 (Carbon Dioxide): - The reaction is the combustion of carbon in the presence of oxygen. - The balanced equation is: C + O2 -> CO2.

2. CO2 (Carbon Dioxide) to H2CO3 (Carbonic Acid): - Carbon dioxide reacts with water to form carbonic acid. - The balanced equation is: CO2 + H2O -> H2CO3.

3. H2CO3 (Carbonic Acid) to MgCO3 (Magnesium Carbonate): - Carbonic acid reacts with magnesium hydroxide to form magnesium carbonate. - The balanced equation is: H2CO3 + Mg(OH)2 -> MgCO3 + 2H2O.

4. MgCO3 (Magnesium Carbonate) to MgCl2 (Magnesium Chloride): - Magnesium carbonate reacts with hydrochloric acid to form magnesium chloride. - The balanced equation is: MgCO3 + 2HCl -> MgCl2 + CO2 + H2O.

5. MgCl2 (Magnesium Chloride) to Mg(OH)2 (Magnesium Hydroxide): - Magnesium chloride reacts with sodium hydroxide to form magnesium hydroxide. - The balanced equation is: MgCl2 + 2NaOH -> Mg(OH)2 + 2NaCl.

6. Mg(OH)2 (Magnesium Hydroxide) to MgO (Magnesium Oxide): - Magnesium hydroxide decomposes to form magnesium oxide and water. - The balanced equation is: Mg(OH)2 -> MgO + H2O.

7. MgO (Magnesium Oxide) to Mg (Magnesium): - Magnesium oxide can be reduced to magnesium by heating it with carbon. - The balanced equation is: MgO + C -> Mg + CO.

8. Mg (Magnesium) to Mg (Magnesium): - No reaction occurs as magnesium is already in its elemental form.

Summary of Chemical Reactions and Substance Names

1. C (Carbon) -> CO2 (Carbon Dioxide) 2. CO2 (Carbon Dioxide) -> H2CO3 (Carbonic Acid) 3. H2CO3 (Carbonic Acid) -> MgCO3 (Magnesium Carbonate) 4. MgCO3 (Magnesium Carbonate) -> MgCl2 (Magnesium Chloride) 5. MgCl2 (Magnesium Chloride) -> Mg(OH)2 (Magnesium Hydroxide) 6. Mg(OH)2 (Magnesium Hydroxide) -> MgO (Magnesium Oxide) 7. MgO (Magnesium Oxide) -> Mg (Magnesium)

Please note that the reactions and substance names provided above are based on the given chain of substances and their corresponding reactions.