Question

C-CaC2-C2H2-CO2-C-Al4C3

Answer 1

1)2C+Ca=CaC2 2)CaC2+2HCl =CaCl2+C2H2 3)C2H2+2O2 =2CO2+H2 4)CO2=(разложение при нагревании)C+ O2 5)3C+ 4Al =Al4C3

Answer 2

Chemical Reactions:

The given sequence "C-CaC2-C2H2-CO2-C-Al4C3" represents a series of chemical reactions involving different compounds. Let's break down each reaction step by step:

1. C + CaC2 → C2H2 + Ca(OH)2: - In this reaction, carbon (C) reacts with calcium carbide (CaC2) to produce acetylene gas (C2H2) and calcium hydroxide (Ca(OH)2). - The balanced equation for this reaction is: C + CaC2 → C2H2 + Ca(OH)2.

2. C2H2 + O2 → CO2 + H2O: - Acetylene gas (C2H2) reacts with oxygen (O2) to form carbon dioxide (CO2) and water (H2O) [[5]](https://library.pguas.ru/xmlui/bitstream/handle/123456789/312/%D0%9F%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0%20%D0%BA%D1%83%D1%80%D1%81%D0%B0_%D0%A5%D0%B8%D0%BC%D0%B8%D1%8F_%20_%D0%B7%D0%B0%D0%BE%D1%87%D0%BD%D0%B8%D0%BA%D0%B8%20%D0%B8%20%D1%8D%D0%BA%D1%81%D1%82%D0%B5%D1%80%D0%BD%D0%B0%D1%82_.pdf?sequence=1&isAllowed=y). - The balanced equation for this reaction is: C2H2 + O2 → CO2 + H2O.

3. CO2 + C → 2CO: - Carbon dioxide (CO2) reacts with carbon (C) to produce carbon monoxide (CO). - The balanced equation for this reaction is: CO2 + C → 2CO.

4. Al4C3 + H2O → CH4 + Al(OH)3: - Aluminum carbide (Al4C3) reacts with water (H2O) to produce methane gas (CH4) and aluminum hydroxide (Al(OH)3) [[9]](https://www.trims.edu.az/noduploads/book/quot-himiya-quot-kimya-fanni-uzra-9-cu-sinif-ucun-metodik-vasait-backup.pdf). - The balanced equation for this reaction is: Al4C3 + 12H2O → 4CH4 + 3Al(OH)3.

Please note that the given sequence represents a series of chemical reactions, and each reaction has its own balanced equation.