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硫與硫酸反應現象
硫與硫酸反應現象
更新时间:2025-10-31 21:41:35

  1、硫和稀硫酸不會反應,硫和濃硫酸會反應,現象是由固體向液體轉變,顔色變成深棕色,放出刺鼻的SO2氣體。反應過程放出熱量,停止加熱反應會持續進行。

  2、硫和濃硫酸會反應的化學方程式是S+2H2SO4(濃)=加熱=2H2O+3SO2 (氣體符号),典型的歸中反應。

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