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想問C

(C)將物質溶於水中觀察是否會導電/(D)將物買沿示示 將點燃的火柴靠近鹽酸與碳酸鈣產生的氣體,會發生下列何種情形? (A) 火柴繼續燃燒,產生淡藍色火焰(B)火柴繼續燃燒,沒有產生火焰 (C) 火柴熄滅,產生淡藍色火焰 (D)火柴熄滅,沒有產生火焰
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Answers

霏
霏

通常C會是在說氫氣 有爆鳴聲 然後有淡藍色火焰（可燃不助燃）

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