bromocresol purple
plural of Sawchuk
The time of day or night when the moon begins to rise over the horizon.
(chemistry) Used in combination with a known element name (e.g. 'tri-silicon') to designate an unknown element that would reside three periods lower than the known element on a Mendeleev-type perio...
(organic chemistry) A sulfonephthalein derived from a brominated derivative of cresol; it is used as an acid-base indicator
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DiQt（ディクト）
無料
★★★★★★★★★★
