pouco estável
English translation: fairly unstable
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| 14:07 Jan 15, 2013 |
| Portuguese to English translations [PRO] Science - Chemistry; Chem Sci/Eng / oxide | |||||
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|  Selected response from: Marlene Curtis United States Local time: 18:46 | ||||
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| 5 +1 | pouco estável = unstable |
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| 5 +1 | fairly unstable |
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| 3 +1 | metastable |
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Answers
9 mins confidence: 
peer agreement (net): +1
peer agreement (net): +1pouco estável = unstable Explanation: in Chemistry a. Decomposing readily. b. Highly or violently reactive. Reference: http://www.thefreedictionary.com/unstable |
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27 mins confidence: peer agreement (net): +1
peer agreement (net): +1fairly unstable Explanation: stable, fairly unstable and unstable (oxides) -------------------------------------------------- Note added at 28 minutos (2013-01-15 14:35:37 GMT) -------------------------------------------------- The Effect of Oxygen on the Photoconductivity of Anthracene. II - Link link.aip.org/link/?JCPSA6/22/1029/1by AG Chynoweth - 1954 - Cited by 42 - Related articles The oxide formed is fairly unstable and dissociates in the dark. Its rate of dissociation is considerably increased when the crystal is illuminated in the absence of |
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1 hr confidence: 
peer agreement (net): +1
peer agreement (net): +1metastable Explanation: e.g. Effect of Temperature. - The interesting oxidation behavior of uranium i n CO, a t 8OO0C is shown in Fig . 4.4. It appears to be due to formation of a metastable oxide during rapid oxidation., The maximum O:U ration observed was approximately 2.23. http://www.ornl.gov/info/reports/1967/3445600509457.pdf Beside the stable solutions, metastable and unstable solutions of the system are also found. All these solutions are shown in the two dimensional phase space. http://iopscience.iop.org/1402-4896/47/3/003 While textbooks will often list only the first three, and rarely the fourth, a large number of other oxides are known today, most of them synthesized since the 1960s. Some of these new oxides are stable at room temperature. Some are metastable or stable only at very low temperatures, but decompose to simpler oxocarbons when warmed. Many are inherently unstable and can be observed only momentarily as intermediates in chemical reactions or are so reactive that they can exist only in the gas phase or under matrix isolation conditions. http://en.wikipedia.org/wiki/Oxocarbon Reference: http://www.merriam-webster.com/dictionary/metastable |
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