fix#157
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| Status | Name | Latest Commit | Preview URL | Updated (UTC) |
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chemistry-note | a9a3122 | Commit Preview URL Branch Preview URL |
Jun 10 2026, 05:13 AM |
Wzmois
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Jun 21, 2026
| 制磷酸：$\ce{Ca3(PO4)2 +3H2SO4(浓)\xlongequal{}3CaSO4 +2H3PO4}$ | ||
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| > 一般使用 $70\%$ 的浓硫酸，因为 $98\%$ 的浓硫酸氢离子浓度过小 | ||
| > 一般使用 $70\%$的浓硫酸，因为 $98\%$的浓硫酸氢离子浓度过小 |
| - $\ce{5SO2 +2MnO^-_4 +2H2O \xlongequal{} 2Mn^2+ +5SO^2-_4 +4H+}$ | ||
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| > 二氧化硫不与浓硫酸反应，因为两者如果反应，会归中反应至+5 价，而+5 价的硫化物不稳定 | ||
| > 二氧化硫不与浓硫酸反应，因为二氧化硫（硫为+4价）与浓硫酸（硫为+6价）之间没有中间价态。 |
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硫实际上有 +5 价的，应该补充说明一下
+4 和 +6 两边要加空格
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