Question

Match the following equation with the type of chemical reaction. Question 6 options: H2 + O2 ---> H2O HBr ---> H2 + Br2 HCl + NaOH ---> H2O + NaCl Al + H2SO4 ---> H2+ Al2(SO4)3 C2H6 + O2 ---> H2O + CO2 1. Synthesis 2. Decompostion 3. Single- Displacement 4. Double- Replacement 5. Combustion

Answer 1

The reactions were classified respectively as Synthesis, Decomposition, Double-Replacement, Single-Displacement, and Combustion.

The student is tasked with matching each chemical equation to the correct type of chemical reaction. This involves understanding different reaction classifications.

• Synthesis: Two or more substances combine to make a more complex compound.
• Decomposition: A compound breaks down into simpler substances.
• Single-Displacement: One element replaces another in a compound.
• Double-Replacement: Ions in two compounds exchange places.
• Combustion: A compound, usually a hydrocarbon, reacts with oxygen, producing carbon dioxide and water.

With this understanding, let's classify the given equations:

1. H2 + O2 → H2O is a Synthesis reaction (Option 1).
2. HBr → H2 + Br2 is a Decomposition reaction (Option 2).
3. HCl + NaOH → H2O + NaCl is a Double-Replacement reaction (Option 4).
4. Al + H2SO4 → H2+ Al2(SO4)3 is a Single-Displacement reaction (Option 3).
5. C2H6 + O2 → H2O + CO2 represents a Combustion reaction (Option 5).

Each equation is matched with its respective reaction type, helping the student learn the classifications.

Answer 2

Hello there!

1. Synthesis: 2H₂ + O₂ → 2H₂O
2. Decomposition: 2HBr → H₂ + Br₂
3. Single-Replacement: 2Al + 3H₂SO₄ → 3H₂ + Al₂(SO₄)₃
4. Double-Replacement: 2HCl + 2NaOH → 2H₂O + 2NaCl
5. Combustion: 2C₂H₆ + 7O₂ → 6H₂O + 4CO₂

I hope this helps!
Brady