When Acetylene Gas, C₂H₂, Burns in Air, a Combustion Reaction

question 115

Multiple Choice

When acetylene gas, C₂H₂, burns in air, a combustion reaction occurs. Which of the following is a balanced equation that represents this reaction, which occurs when welding torches are used?

• A)2C₂H₂(g)+ 5O₂(g)→ 4CO₂(g)+ 2H₂O(g)
• B)C₂H₂(g)+ O₂(g)→ C₂H₂O₂(g)
• C)C₂H₂(g)+ O₂(g)→ 2CO₂(g)+ H₂O(g)
• D)C₂H₂(g)+ O₂(g)→ C₂O₂(g)+ H₂(g)
• E)C₂H₂(g)+ O₂(g)→ CO₂(g)+ H₂O(g)

---

Definitions:

Nationals

Individuals who are legal citizens of a particular country and entitled to its protection and to exercise their rights and responsibilities as a citizen.

Citizenship

The status of being a recognized member of a state or nation, with associated rights, duties, and privileges.

Muscular Foreign Policy

An approach to foreign affairs that emphasizes the use or threat of military force and strong diplomacy to influence the policies of other countries.

Overcivilization

A concept suggesting a state wherein a society becomes so culturally and technologically advanced that it leads to its own decline or stagnation due to complexities and disconnect from basic human nature.