Ask a New Question
Menu

2H20 -> 2H2 + 02

2C2H6 + 702 -> 4 CO2 + 6H20
2 Na + Cl2 -> 2 NaCl
4 AlBr3 + 302 -> 2 A1203 + 6 Br2
KCI + Nal -> KI + NaCI

a. Double Replacement
b. Decomposition
c.
Combustion
d. Single Replacement
e. Synthesis

3 answers

Let's classify each of the given reactions based on their types:

  1. 2H₂O → 2H₂ + O₂

    • Type: b. Decomposition
    • Explanation: Water is broken down into hydrogen and oxygen.

  2. 2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

    • Type: c. Combustion
    • Explanation: Ethane (C₂H₆) is combusted in the presence of oxygen to produce carbon dioxide and water.

  3. 2 Na + Cl₂ → 2 NaCl

    • Type: e. Synthesis
    • Explanation: Sodium and chlorine react to form sodium chloride.

  4. 4 AlBr₃ + 3O₂ → 2 Al₂O₃ + 6 Br₂

    • Type: a. Double Replacement
    • Explanation: While the reaction doesn't precisely fit typical definitions (like ionic exchange), it features both aluminum and bromine transitioning to different states/products, which can be interpreted by some as a double replacement. However, this classification may vary; the main reaction involves species converting forms.

  5. KCl + NaI → KI + NaCl

    • Type: a. Double Replacement
    • Explanation: Potassium chloride and sodium iodide exchange partners to form potassium iodide and sodium chloride.

Now let's summarize the classifications:

  1. Decomposition: 2H₂O → 2H₂ + O₂
  2. Combustion: 2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O
  3. Synthesis: 2 Na + Cl₂ → 2 NaCl
  4. Double Replacement: 4 AlBr₃ + 3O₂ → 2 Al₂O₃ + 6 Br₂ (can also be debated)
  5. Double Replacement: KCl + NaI → KI + NaCl
Choose one answer for each reaction

Sure! Here’s a clear classification of each reaction with just one answer per reaction:

  1. 2H₂O → 2H₂ + O₂

    • Answer: b. Decomposition

  2. 2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

    • Answer: c. Combustion

  3. 2 Na + Cl₂ → 2 NaCl

    • Answer: e. Synthesis

  4. 4 AlBr₃ + 3O₂ → 2 Al₂O₃ + 6 Br₂

    • Answer: a. Double Replacement (this is the closest classification)

  5. KCl + NaI → KI + NaCl

    • Answer: a. Double Replacement

So, to summarize:

  1. Decomposition
  2. Combustion
  3. Synthesis
  4. Double Replacement
  5. Double Replacement