Carbon dioxide has one carbon atom and two oxygen atoms, and a molecular weight of 44 grams per mole (a certain number of molecules). The oxygen in the air is actually O 2, or molecular oxygen, with a molecular weight of 32.Hence, carbon dioxide has a higher density, or is heavier than oxygen.
Carbon dioxide has one carbon atom and two oxygen atoms, and a molecular weight of 44 grams per mole (a certain number of molecules). The oxygen in the air is actually O 2, or molecular oxygen, with a molecular weight of 32. Hence, carbon dioxide has a higher density, or is heavier than oxygen. That is why you need to be careful with carbon dioxide. It can displace the oxygen in a room and lead to asphyxiation. In a carbon dioxide extinguisher, the carbon dioxide is kept in pressurized liquid form in the cylinder. When the container is opened, the carbon dioxide expands to form a gas in the atmosphere. Carbon dioxide gas is heavier than oxygen, so it creates a blanket around the burning fuel and displaces the oxygen surrounding the fuel. Or to simplify, it removes oxygen from the fire triangle, to smother it and extinguish it. They produce oxygen as a waste product. Carbon dioxide moves from the air into the leaves of plants. Oxygen moves from the plant into the air through the leaves.   A: Almost all living things, including plants, get energy from cellular respiration. This process releases energy from the sugar molecules in food. Oxygen is used in cellular respiration. Carbon dioxide is produced as a waste product.   A: The oxygen produced during photosynthesis is used in cellular respiration. The carbon dioxide produced in cellular respiration is used in photosynthesis. carbon dioxide and oxygen move through the ecosystem in this path called the CARBON DIOXIDE-OXYGEN CYCLE. A: During photosynthesis, algaet green plants take in CO2 from the air.  Then you can multiply Argon%, Oxygen%, Carbon dioxide% etc. etc. for x and then find the % of the unknown gas subtracting to 100% the sum of all the gasses. In one formula: $$100-((Ar\%\times x)+ (O_{2}\%\times x) + (CO_{2}\%\times x) \ldots)= Unknown~gas~\% $$. The result is this:  1 A high concentration can displace oxygen in the air. 2  If less oxygen is available to breathe, symptoms such as rapid breathing, rapid heart rate, clumsiness, emotional upsets and fatigue can result. 3  As less oxygen becomes available, nausea and vomiting, collapse, convulsions, coma and death can occur.  Depending on the temperature and pressure, carbon dioxide can also exist as a liquid or a solid. In its solid form, carbon dioxide is called dry ice because it slowly changes from a cold solid directly into a gas.  An asphyxiant gas is a nontoxic or minimally toxic gas which reduces or displaces the normal oxygen concentration in breathing air. Breathing of oxygen-depleted air can lead to death by asphyxiation (suffocation). Because asphyxiant gases are relatively inert and odorless, their presence in high concentration may not be noticed, except in the case of carbon dioxide (hypercapnia). Plants and certain bacteria take in carbon dioxide, combine it with water to form glucose and produce oxygen as a byproduct in the photosynthesis reaction. The current increase in carbon dioxide levels in our atmosphere indicates that this cycle is no longer in balance.  The cold carbon dioxide gas is heavier than the surrounding air, so the concentration of carbon dioxide near the floor may be high enough to displace oxygen, potentially posing a danger to pets or small children. Dry ice does not pose a significant hazard when it is used in a well-ventilated area.  Toxic gases, by contrast, cause death by other mechanisms, such as competing with oxygen on the cellular level (e.g., carbon monoxide) or directly damaging the respiratory system (e.g., phosgene). Far smaller quantities of these are deadly. Because asphyxiant gases are relatively inert and odorless, their presence in high concentration may not be noticed, except in the case of carbon dioxide (hypercapnia).
http://scienceline.ucsb.edu/getkey.php?key=2966 http://www.answers.com/Q/How_does_a_carbon_dioxide_fire_extinguisher_remove_oxygen_from_fire http://www.answers.com/Q/Does_carbon_dioxide_displace_oxygen http://chemistry.stackexchange.com/questions/9806/how-much-carbon-dioxide-would-be-required-to-displace-enough-oxygen-to-prevent-i http://www.ccohs.ca/oshanswers/chemicals/chem_profiles/carbon_dioxide.html https://www.dhs.wisconsin.gov/chemical/carbondioxide.htm https://en.wikipedia.org/wiki/Asphyxiant_gas http://blogcritics.org/atmospheric-oxygen-levels-fall-as-carbon/ http://chemistry.about.com/od/medicalhealth/a/Carbon-Dioxide-Poisoning.htm https://en.wikipedia.org/wiki/Asphyxiant_gas
why does carbon dioxide displace oxygen