| 词汇 | carbonic-acid |
| 释义 | carbonic acid noun[ U ] chemistry specializeduk /kɑːˌbɒn.ɪk ˈæs.ɪd/ us /kɑːrˌbɑː.nɪk ˈæs.ɪd/ a weak acid made of carbon dioxide dissolved in water碳酸（二氧化碳气体溶于水而生成的一种弱酸） Chemical elements actinium alkali metal americium astatine berkelium brimstone bromine calcium fluorine germanium lithium manganese nickel plutonium quicksilver selenium silicon sodium sulphur transition metal Air once breathed has lost the chief part of its oxygen, and acquired a proportionate increase of carbonic acid gas. If it precipitates on adding lime water, it is carbonic acid. The bicarbonate is decomposed, pure carbonic acid being given off. This sweet cider ferments, and the sugar part of it changes into carbonic acid gas and alcohol. Thus air which has been breathed has lost about five per cent. of oxygen and has gained nearly five per cent. of carbonic acid. carbonic acid | American Dictionarycarbonic acid noun[ U ] us/kɑrˈbɑn·ɪk ˈæs·ɪd/ chemistry a weak acid made of carbon dioxide (= a gas) mixed with water Examples of carbonic acidcarbonic acid At first the carbonicacid amide (1) reacts with the sodium hypochlorite. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Also, the increase in residue biomass with time likely stimulated microbial activity and therefore increased the production of carbonicacid, a by-product from microbial respiration. Secondary porosity development (alarmingly called decompaction!) is thought to result from carbonate solution by carbonicacid formed by decarboxylation during early stage hydrocarbon generation. Carbonicacid as the host signal for the development of parasitic stages of nematodes. During this period microbial activity is at its lowest because of low soil temperatures and therefore the production of carbonicacid is likely at its minimum. I do not like imbibing carbonicacid gas, either in mineral waters or in anything else. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Another thing is carbon dioxide, which is what we used to call carbonicacid gas, and it is very unpleasant. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The nostrils and mouths of human beings are such that one does not die from carbonicacid gas. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There you have apparatus that contains simply solid carbonicacid, and when you press the button out comes the stream of carbonic acid and combustion is impossible. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 In the air, rain combines with carbon dioxide to form a weak carbonicacid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In humans, acetophenone is metabolized to benzoic acid, carbonicacid, and acetone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the more specific enzymatic methods, the enzyme urease converts urea to ammonia and carbonicacid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The dissolved gas reacts with the water to form carbonicacid, and thus acidifies the ocean. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Inside the cytoplasm of the parietal cell, the carbonicacid readily dissociates into hydrogen and bicarbonate ions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The compound is believed to be highly unstable, decomposing spontaneously into carbonicacid monohydrate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of carbonic acid These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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