Question

Винни-Пух и Пятачок не нашли в лаборатории банку с поваренной солью и решили получить ее химическим путем, используя склянки с растворами веществ, хранящимися на полке в школьном кабинете химии. Внимательно прочитав учебник, им удалось получить чистую поваренную соль пятью различными способами. А вот записать уравнения реакций наши герои не смогли. Помогите им.

Answer 1

Na2CO3 + 2HCl = 2NaCl + CO2(газ) + H2ONaOH + HCl = NaCl + H2O
NaOH + ZnCl = Zn(OH)2(осадок) + NaCl
2Na + Cl2 = 2NaCl
4NaClO3 =(нагревание(t1)) NaCl + 3NaClO4
2NaClO3 = (нагревание(t2>t1) и катализатор) 2NaCl + 3O2(газ)

Answer 2

Winnie the Pooh and Piglet's Chemistry Experiment

Winnie the Pooh and Piglet, unable to find a jar of table salt in the laboratory, decided to obtain it through chemical means using various substances stored on the shelf in the school chemistry classroom. After carefully reading the textbook, they managed to obtain pure table salt in five different ways. However, they were unable to write down the equations for the reactions. Let's help them with that.

1. Obtaining Table Salt through Chemical Reactions

Winnie the Pooh and Piglet were able to obtain table salt (sodium chloride) through various chemical reactions. Here are the equations for the reactions they performed:

- Reaction 1: - *Sodium Hydroxide + Hydrochloric Acid → Sodium Chloride + Water* - Equation: `NaOH + HCl → NaCl + H2O`

- Reaction 2: - *Sodium + Chlorine Gas → Sodium Chloride* - Equation: `2Na + Cl2 → 2NaCl`

- Reaction 3: - *Hydrochloric Acid + Sodium Carbonate → Sodium Chloride + Water + Carbon Dioxide* - Equation: `2HCl + Na2CO3 → 2NaCl + H2O + CO2`

- Reaction 4: - *Sodium Bicarbonate + Hydrochloric Acid → Sodium Chloride + Water + Carbon Dioxide* - Equation: `NaHCO3 + HCl → NaCl + H2O + CO2`

- Reaction 5: - *Ammonium Chloride + Sodium Hydroxide → Sodium Chloride + Water + Ammonia* - Equation: `NH4Cl + NaOH → NaCl + H2O + NH3`

2. Conclusion

Winnie the Pooh and Piglet successfully obtained table salt through various chemical reactions using substances available in the school chemistry classroom. They can now use this knowledge for their future experiments.

Feel free to ask if you have any more questions or need further assistance!