Question

If Angie knows that baking soda reacts with vinegar producing CO2, what conclusion can she draw from this experiment?

A

CO2 has the capacity to combust in the air around the flame and extinguish it.


B

CO2 can displace oxygen around the flame because it has a lower density than air.


C

CO2 can displace oxygen around the flame because it has a higher density than air.


D

CO2 has the capacity to absorb the heat of the air around the flame and extinguish it.

Answer 1

Option C:

CO2 can displace oxygen around the flame because it has a higher density than air.

Step-by-step explanation:

CO2 is heavier - or in this case, we can say denser than air. In addition to that, CO2 does not support burning. t is a major component in fire extinguishers that are designed to stop minor domestic fire incidents.

Since CO2 is denser than air, it sinks to the bottom of the room, and surrounds the flame with an atmoshphere inert to combustion, pushing the oxygen upwards in the process, away from the reach of the flames.

This causes the fire to starve to death from lack of oxygen