写出英文名: 溴:______ ;溴甲烷:______ methane
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写出英文名: 氯:______ 氯甲烷:______ methane
写出英文名:戊-2-烯:______ ;辛-1-炔:______
写出英文名:壬烷:______ ;癸烷:______
If (S)-glyceraldehyde has a specific rotation of -8.7°, what is the specific rotation of (R)-glyceraldehyde? ()
A. -8.7°
B. +8.7°
C. 0.0°
D. cannot be determined from the information given