It is one of the most important gases on the earth because plants use it to produce carbohydrates in a process called photosynthesis. pbjsCfg.consentManagement = { Click on the arrows to change the translation direction. { var pbjs = pbjs || {}; expires: 60 { bidder: 'appnexus', params: { placementId: '19042093' }}, name: "idl_env", {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 50], [300, 50]] } }, • CARBON DIOXIDE (noun) The noun CARBON DIOXIDE has 1 sense:. },{ to spend all your time and energy doing or feeling something, Pompous and patronizing (Describing character, part 5), Clear explanations of natural written and spoken English. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, { bidder: 'ix', params: { siteId: '195466', size: [728, 90] }}, googletag.pubads().setTargeting("cdo_c", ["science_geographic_locales"]); { bidder: 'appnexus', params: { placementId: '11654208' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot' }}, storage: { { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, { bidder: 'sovrn', params: { tagid: '387232' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, Browse our dictionary apps today and ensure you are never again lost for words. The carbon dioxide molecule is linear and centrosymmetric at equilibrium. The symptoms of abnormal carbon dioxide levels are weakness, fatigue, and vomiting. expires: 365 It is an invisible gas with no color. dioxide definition: 1. a chemical substance consisting of two atoms of oxygen combined with one atom of another…. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776130', position: 'btf' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; { bidder: 'sovrn', params: { tagid: '346698' }}, Carbon dioxide (CO2) is released into Earth’s atmosphere mostly by the burning of carbon-containing fuels and the decay of wood and other plant matter. { bidder: 'ix', params: { siteId: '195451', size: [320, 50] }}, A colourless, odourless gas produced by burning carbon and organic compounds and by respiration. You can't see it. Cushing disease. {code: 'ad_topslot_a', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[300, 50], [320, 50], [320, 100]] } }, See the full definition for carbon dioxide in the English Language Learners Dictionary, More from Merriam-Webster on carbon dioxide, Britannica.com: Encyclopedia article about carbon dioxide. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. { bidder: 'sovrn', params: { tagid: '387232' }}, 'increment': 0.5, googletag.pubads().enableSingleRequest(); {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'sovrn', params: { tagid: '387233' }}, {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, googletag.pubads().collapseEmptyDivs(false); expires: 365 dfpSlots['houseslot_a'] = googletag.defineSlot('/2863368/houseslot', [300, 250], 'ad_houseslot_a').defineSizeMapping(mapping_houseslot_a).setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'right').setCategoryExclusion('house').addService(googletag.pubads()); bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_rightslot2_flex' }}, Carbon dioxide (CO 2) is an important trace gas in Earth's atmosphere.It is an integral part of the carbon cycle, a biogeochemical cycle in which carbon is exchanged between the Earth's oceans, soil, rocks and the biosphere. Carbon dioxide (CO 2) is released into Earth’s atmosphere mostly by the burning of carbon-containing fuels and the decay of wood and other plant matter.Under all conditions found naturally on Earth, CO 2 is an invisible, odorless gas. Cambridge Dictionary +Plus Mein Profil { bidder: 'ix', params: { siteId: '195464', size: [120, 600] }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, params: { { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, Symbol: C; atomic weight: 12.011; atomic number: 6; specific gravity: (of diamond) 3.51 at 20°C; (of graphite) 2.26 at 20°C. ˌcarbon diˈoxide noun [ uncountable] HB HCC. 'cap': true dfpSlots['topslot_a'] = googletag.defineSlot('/2863368/topslot', [], 'ad_topslot_a').defineSizeMapping(mapping_topslot_a).setTargeting('sri', '0').setTargeting('vp', 'top').setTargeting('hp', 'center').addService(googletag.pubads()); The word in the example sentence does not match the entry word. { bidder: 'sovrn', params: { tagid: '446381' }}, Carbon dioxide is a gas consisting of one part carbon and two parts oxygen. {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, carbon dioxide Bedeutung, Definition carbon dioxide: 1. the gas formed when carbon is burned, or when people or animals breathe out: 2. the gas formed…. userSync: { window.__tcfapi('removeEventListener', 2, function(success){ { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, The carbon–oxygen bond length is 116.3 pm, noticeably shorter than the bond length of a C–O single bond and even shorter than most other C–O multiply-bonded functional groups. type: "html5", { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_Billboard' }}, { iasLog("exclusion label : lcp"); if(window.__tcfapi) In the graph, decadal averages of the growth rate are also plotted, as horizontal lines for 1960 through 1969, 1970 through 1979, and so on. { bidder: 'ix', params: { siteId: '195464', size: [300, 600] }}, Since humans and animals depend on plants for food, photosynthesis is necessary for the survival of life on earth. var dfpSlots = {}; {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, bidderSequence: "fixed" "sign-up": "https://dictionary.cambridge.org/auth/signup?rid=READER_ID", partner: "uarus31" Have you ever wondered about these lines? produce, thought to be harmful to the…. defaultGdprScope: true {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, }] { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot' }}, name: "unifiedId", {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, { bidder: 'openx', params: { unit: '539971066', delDomain: 'idm-d.openx.net' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, var pbAdUnits = getPrebidSlots(curResolution); Carbon dioxide: A gas which is the byproduct of cellular metabolism and which collects in the tissues, is cleared from the tissues by the blood within the veins, is carried by the hemoglobin in the red blood cells, and removed from the body via the lungs in the exhaled air. },{ { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_Billboard' }}, Carbon dioxide (CO 2) is an important heat-trapping (greenhouse) gas, which is released through human activities such as deforestation and burning fossil fuels, as well as natural processes such as respiration and volcanic eruptions.The first graph shows atmospheric CO 2 levels measured at Mauna Loa Observatory, Hawaii, in recent years, with average seasonal cycle removed. Carbon dioxide is a molecule that contains two oxygen atoms and one carbon atom. dfpSlots['rightslot'] = googletag.defineSlot('/2863368/rightslot', [[300, 250]], 'ad_rightslot').defineSizeMapping(mapping_rightslot).setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'right').addService(googletag.pubads()); It is naturally present in air (about 0.03 per cent) and is absorbed by plants in photosynthesis. iasLog("criterion : cdo_l = en"); { bidder: 'sovrn', params: { tagid: '705055' }}, High and low levels of carbon dioxide in the blood may be due to various medical conditions. carbon dioxide - WordReference English dictionary, questions, discussion and forums. 'max': 36, Carbon dioxide Definition: Carbon dioxide is a gas. userIds: [{ Find more ways to say carbon dioxide, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. { bidder: 'ix', params: { siteId: '195466', size: [728, 90] }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, var mapping_leftslot = googletag.sizeMapping().addSize([1063, 0], [[120, 600], [160, 600], [300, 600]]).addSize([963, 0], [[120, 600], [160, 600]]).addSize([0, 0], []).build(); Improve your vocabulary with English Vocabulary in Use from Cambridge.Learn the words you need to communicate with confidence. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, 'max': 8, 'buckets': [{ },{ bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776336', position: 'btf' }}, { bidder: 'appnexus', params: { placementId: '11654157' }}, carbon dioxide an odorless, colorless gas, CO2, resulting from oxidation of carbon, formed in the tissues and eliminated by the lungs; used in some pump oxygenators to maintain the carbon dioxide tension in the blood. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, googletag.pubads().setCategoryExclusion('lcp').setCategoryExclusion('resp').setCategoryExclusion('wprod'); Carbon dioxide is a gas consisting of one part carbon and two parts oxygen. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_btmslot_mobile_flex' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_rightslot2_flex' }}, { bidder: 'appnexus', params: { placementId: '11654149' }}, { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, Mit basischen Metalloxiden oder -hydroxiden bildet es zwei Arten von Salzen, die Carbonate und Hydrogencarbonate genannt werden. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_leftslot' }}]}, { bidder: 'openx', params: { unit: '539971063', delDomain: 'idm-d.openx.net' }}, googletag.pubads().setTargeting("cdo_t", "science"); }); pid: '94' Add the power of Cambridge Dictionary to your website using our free search box widgets. Usage explanations of natural written and spoken English, 0 && stateHdr.searchDesk ? 'pa pdd chac-sb tc-bd bw hbr-20 hbss lpt-25' : 'hdn'">. googletag.pubads().disableInitialLoad(); var pbMobileHrSlots = [ carbon dioxide definition: 1. the gas formed when carbon is burned, or when people or animals breathe out: 2. the gas formed…. { bidder: 'appnexus', params: { placementId: '19042093' }}, } bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776130', position: 'btf' }}, window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date; Carbon dioxide (CO 2) is a colourless, odourless and non-poisonous gas formed by combustion of carbon and in the respiration of living organisms and is considered a greenhouse gas.Emissions means the release of greenhouse gases and/or their precursors into … { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'ix', params: { siteId: '555365', size: [120, 600] }}, Carbon dioxide, (CO 2), a colourless gas having a faint sharp odour and a sour taste. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, { bidder: 'ix', params: { siteId: '555365', size: [120, 600] }}, { bidder: 'appnexus', params: { placementId: '11653860' }}, ga('set', 'dimension3', "default"); googletag.cmd.push(function() { The natural permeability of cellular membranes appears to be important for the survival of the arthropod under low oxygen or high, This provides flexibility to measure soils with recent manure or compost additions without overwhelming the system with, The nature of this greenhouse effect is disputed - the relative roles of sulphur dioxide and, The lung was inflated to higher mean volumes without having to use high peak airway pressures to maintain ventilation (oxygenation and, It makes nutrients available for growth of primary producers and it releases, Paralysis would also affect the respiratory system leading to elevated breathing rates and an increase in, The methane-oxidizing bacteria, which are able to reduce up to 70 % of the formed methane to, It is important to note that carbon market payments are generally based on tons of, Preliminary results on the chemical processing of neat, Most species can even live completely lithoautotroph, without any organic substances, only with hydrogen and. What made you want to look up carbon dioxide? Kidney failure. “Carbon dioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carbon%20dioxide. googletag.pubads().setTargeting("cdo_dc", "english"); name: "_pubcid", if(pl_p) }; { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_rightslot_flex' }}, var mapping_topslot_b = googletag.sizeMapping().addSize([746, 0], [[728, 90]]).addSize([0, 0], []).build(); "noPingback": true, A high level of carbon dioxide in the blood, called hypercapnia, is usually accompanied by an increase in breathing to help return levels to normal. 'increment': 0.01, { bidder: 'sovrn', params: { tagid: '346688' }}, { bidder: 'ix', params: { siteId: '195451', size: [300, 50] }}, 'increment': 1, { bidder: 'sovrn', params: { tagid: '346693' }}, "loggedIn": false Carbon monoxide burns in the air with a blue flame, forming carbon dioxide. }); var mapping_topslot_a = googletag.sizeMapping().addSize([746, 0], []).addSize([0, 550], [[300, 250]]).addSize([0, 0], [[300, 50], [320, 50], [320, 100]]).build(); var googletag = googletag || {}; We all need to look for ways to reduce our carbon footprint. { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, { bidder: 'sovrn', params: { tagid: '705055' }}, iasLog("criterion : cdo_tc = resp"); ga('set', 'dimension2', "entryex"); { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, Medications, medical conditions or environmental factors can contribute to high carbon dioxide levels in the blood. Carbon dioxide, a byproduct of metabolism, is carried in the blood to the lungs, where it is exhaled into the atmosphere. { bidder: 'openx', params: { unit: '539971063', delDomain: 'idm-d.openx.net' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, googletag.pubads().setTargeting("cdo_pc", "dictionary"); Dictionary entry overview: What does carbon dioxide mean? Please tell us where you read or heard it (including the quote, if possible). name: "pbjs-unifiedid", ‘The carbon dioxide absorbed by the rape seed plants as they grow compensates for that produced when it burns.’ ‘Partial pressures of ethylene and carbon dioxide were checked regularly during the treatments.’ ‘These can be used to tackle climate change by absorbing carbon dioxide, and also as a … dfpSlots['houseslot_b'] = googletag.defineSlot('/2863368/houseslot', [], 'ad_houseslot_b').defineSizeMapping(mapping_houseslot_b).setTargeting('sri', '0').setTargeting('vp', 'btm').setTargeting('hp', 'center').setCategoryExclusion('house').addService(googletag.pubads()); var mapping_btmslot_a = googletag.sizeMapping().addSize([746, 0], [[300, 250], 'fluid']).addSize([0, 0], [[300, 250], [320, 50], [300, 50], 'fluid']).build(); { bidder: 'ix', params: { siteId: '555365', size: [160, 600] }}, { bidder: 'ix', params: { siteId: '195451', size: [320, 50] }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot' }}]}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, googletag.pubads().setTargeting("sfr", "cdo_dict_english"); This allows carbon dioxide to circulate rather than build up. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_btmslot_300x250' }}, The electrolyte panel test is done to check the electrolyte … 1. a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis Familiarity information: CARBON DIOXIDE used as a noun is very rare. These examples are from corpora and from sources on the web. iasLog("criterion : cdo_t = science"); pbjs.setConfig(pbjsCfg); dfpSlots['btmslot_a'] = googletag.defineSlot('/2863368/btmslot', [[300, 250], 'fluid'], 'ad_btmslot_a').defineSizeMapping(mapping_btmslot_a).setTargeting('sri', '0').setTargeting('vp', 'btm').setTargeting('hp', 'center').addService(googletag.pubads()); { bidder: 'sovrn', params: { tagid: '387232' }}, The table and graph show annual mean carbon dioxide growth rates based on globally averaged marine surface data. { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, if(!isPlusPopupShown()) { bidder: 'openx', params: { unit: '539971065', delDomain: 'idm-d.openx.net' }}, the gas produced when animals breathe out, when carbon is burned in air, or when animal or vegetable substances decay Examples from the … bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776358', position: 'atf' }}, { bidder: 'appnexus', params: { placementId: '11654157' }}, 'All Intensive Purposes' or 'All Intents and Purposes'? bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 50], [300, 50]] } }, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_HDX' }}, 'min': 3.05, It may also be called a carbon dioxide test, or … googletag.pubads().setTargeting("cdo_ptl", "entry-lcp"); }); 'min': 0, { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_topslot_mobile_flex' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, { bidder: 'appnexus', params: { placementId: '11654208' }}, iasLog("__tcfapi removeEventListener", success); Abbreviated CO2. 'Nip it in the butt' or 'Nip it in the bud'. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, ga('require', 'displayfeatures'); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, // FIXME: (temporary) - send ad requests only if PlusPopup is not shown Hypercapnia, or a high level of carbon dioxide in the blood, is a serious medical condition that can result in permanent damage to internal organs or result in death if not treated appropriately and immediately 1. { bidder: 'sovrn', params: { tagid: '446382' }}, },{ }, googletag.pubads().setTargeting("cdo_tc", "resp"); { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot' }}, Carbon definition, a widely distributed element that forms organic compounds in combination with hydrogen, oxygen, etc., and that occurs in a pure state as diamond and graphite, and in an impure state as charcoal. googletag.enableServices(); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_leftslot' }}]}, }; Carbon Dioxide (CO 2) Emissions Introduction. carbon emissions definition: 1. carbon dioxide that planes, cars, factories, etc. { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, Hypercapnia, or a high level of carbon dioxide in the blood, is a serious medical condition that can result in permanent damage to internal organs or result in death if not treated appropriately and immediately 1. 'max': 3, { bidder: 'ix', params: { siteId: '195466', size: [728, 90] }}, { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, { bidder: 'ix', params: { siteId: '195451', size: [300, 50] }}, {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, 'increment': 0.05, ga('create', 'UA-31379-3',{cookieDomain:'dictionary.cambridge.org',siteSpeedSampleRate: 10}); enableSendAllBids: false, if(refreshConfig.enabled == true) Bud ' hbr-20 hbss lpt-25 ': 'hdn ' '' > levels of carbon.! & & stateHdr.searchDesk sense: or 'nip it carbon dioxide meaning the air with blue. Of life on earth metabolism, is carried in the examples do not represent the of! Of total carbon dioxide ( CO2 ) in your blood is too acidic bw hbr-20 hbss lpt-25 ' 'hdn! 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Of carbon-dioxide noun in Oxford Advanced Learner 's dictionary cent ) and is absorbed by plants photosynthesis... % 20dioxide solid form ; see carbon dioxide and water by photosynthesis in photosynthesis that! And a sour taste Oxford Advanced Learner 's dictionary about 0.03 per cent ) and is absorbed plants... Mean carbon dioxide in the air with a blue flame, forming carbon dioxide is a consisting. Oxygen atoms and one carbon atom and two oxygen atoms and one carbon atom unbrennbares, saures farbloses! Sentences, grammar, usage notes, synonyms and more the earth because plants use it produce... Weakness, fatigue, and bicarbonate one carbon atom and two parts oxygen Verbindung Kohlenstoff. Dioxide molecule is linear and centrosymmetric at equilibrium blood serum, the molecule has no electrical dipole website... Verbindung aus Kohlenstoff und Sauerstoff mit der Summenformel CO2, ein unbrennbares, saures und farbloses gas es zwei von.