| 31. | They use organic compounds or molecular hydrogen as the energy source.
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| 32. | Volatile organic compound ( VOC ) emissions from its foundry sand
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| 33. | If partly burned, it produces volatile organic compounds and carbon monoxide.
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| 34. | The natural substrate of the enzyme is the organic compound methenyltetrahydromethanopterin.
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| 35. | Some organic compounds may also contain the elements phosphorus or sulfur.
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| 36. | The first highly-conductive organic compounds were the charge transfer complexes.
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| 37. | Some are manufactured by esterification or soaping of organic compounds.
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| 38. | Hundreds of synthetic organic compounds are known to be sweet.
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| 39. | Like many products made with organic compounds, OLEDs deteriorate with both time and use.
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| 40. | Creatine is an organic compound found naturally in muscle tissue.
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