Carbon dioxide is heavier than oxygen gas. It therefore displaces the oxygen gas around a flame. Without oxygen, the combustion reaction will stop and the flame will be put out.
Further Explanation:
In order for a combustion reaction to happen, three components must be present: fuel, oxygen, and heat to cause ignition. When one of these three is removed, the combustion reaction will stop.
CO2 fire extinguishers use the difference in mass of the CO2 and oxygen molecules to stop the fire. Since CO2 is heavier, it will displace any oxygen molecules that are around the flame. When this happens, the supply of the oxygen will be limited or cut-off and the fire will eventually be put out because of the lack of oxygen. This ability to displace oxygen is also what makes using CO2 as fire extinguisher quite dangerous for the user since it pushes away the oxygen that is needed for respiration.
Other ways to put out fire include spraying liquids that absorb the heat to avoid spreading the fire further or spraying substances that coat the fuel (flammable materials) to avoid contact with oxygen gas which can lead to further combustion.
Learn More
- Learn more about combustion brainly.com/question/9641392
- Learn more about fire extinguisher brainly.com/question/3905469
- Learn more about respiration brainly.com/question/1448925
Keywords: carbon dioxide, fire, combustion
<span>The question is asking us to choose the true statement among: ?
Girls get most of their traits from their moms; boys get most of their traits from their dads. - this is not true, most traits are inherited from both parents
Male offspring will always have an X-linked genetic disease if the mom is a carrier. - this is not true, as they can inherit the non-affected gene
Fathers always determine the gender of the offspring in humans. - this is true! some spermcells carry the Y and some the X genes that determine the gender
Males never have Y chromosomes. - this is false, males always do!</span>
<span>Sumerians built walls using the natural resource they were surrounded with, which was namely clay. They used this clay to create fired mud-bricks, as there was not any other building stone available at the time. However, the clay mud-bricks proved to be a solid structure for town fortification.</span>
Answer:
Start with evaporation. Place a full cup of water in front of a sunny window. Use a marker to make a line at the beginning water level.
After evaporation we have condensation. When the water vapor reaches the sky it cools to form clouds.
Finally, a precipitation experiment. Again, fill a cup almost full with water.
Explanation:
Matter is conserved because atoms are conserved in physical and chemical processes. As complex as the water cycle is, water molecules are conserved and endlessly recycled in nature. Conservation of mass is a physical law that s never broken.
you're welcome!!
bcd i think..............
