Chemistry
Senior High
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2 トド| NM ) 敵
に才まれる電子の総数は何個か。(全1]) %・
(5) ssBr (G) 硫酸イオン (9 CHsCOO_ (e) リン酸イオン
| % 回語 leo
に当てはまる原子の元素記号を答えよ。 (作 点)
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