CO₂ Acts as an Acid in the Reaction CaO(s)

question 79

Multiple Choice

CO₂ acts as an acid in the reaction CaO(s) + CO₂ ⇌ CaCO₃(s) because it ________.

• A) turns blue litmus red
• B) reacts with a metal
• C) is a proton donor
• D) is an electron-pair acceptor
• E) is a gas containing a non-metal

---

Definitions:

Participant Observation

A research method used by sociologists and anthropologists, where the researcher immerses themselves in the community or group being studied to observe and participate in their activities.

Social Setting

The physical and social environment in which individuals interact, influencing behaviors, attitudes, and relationships.

Viewpoint

An individual's way of considering or regarding something; their perspective, opinion, or stance on a particular issue.