User:WhitePhosphorus/磷原子4号

数学公式使用练习

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• 在条目中添加化学方程式时，建议使用\rm，效果：
  • ${\rm {2NaHCO_{3}\triangleq {\Delta }Na_{2}CO_{3}+H_{2}O+CO_{2}}}$

1. $VO_{4}^{3-}+4H^{+}=VO_{2}^{+}+2H_{2}O$
2. $2VO_{2}^{+}+SO_{2}=2VO^{2+}+SO_{4}^{2-}$
3. $5VO^{2+}+MnO_{4}^{-}+H_{2}O=5VO_{2}^{+}+Mn^{2+}+2H^{+}$
4. $5HC_{2}O_{4}^{-}+5H_{2}C_{2}O_{4}+4MnO_{4}^{-}+17H^{+}=4Mn^{2+}+20CO_{2}\uparrow +16H_{2}O$
5. $2CaCO_{3}+Mg^{2+}=CaMg(CO_{3})_{2}+Ca^{2+}$
6. $K={\frac {K_{sp}(Mg(OH)_{2})\times K_{sp}(Ca(OH)_{2})\times K_{a1}(H_{2}CO_{3})^{3}\times K_{a2}(H_{2}CO_{3})}{K_{sp}(CaCO_{3})\times K_{w}^{4}}}=2.77\times 10^{18}$
7. $CO_{2}(g)+H_{2}O(l)\rightleftharpoons H_{2}CO_{3}(aq)$
8. $2\left[RuF_{6}\right]^{2-}+18H_{2}O+8H^{+}+4CH_{3}CSNH_{2}=Ru_{2}S_{3}\cdot 10H_{2}O+12HF+S+4CH_{3}COOH+4NH_{4}^{+}$
9. $2MnO_{4}^{-}+5H_{2}O_{2}+6H^{+}=2Mn^{2+}+5O_{2}\uparrow +8H_{2}O$
10. $2Fe^{2+}+H_{2}O_{2}+2H^{+}=2Fe^{3+}+2H_{2}O$
11. $2Fe^{3+}+H_{2}O_{2}=2Fe^{2+}+O_{2}\uparrow +2H^{+}$
12. $H_{2}-2e^{-}+2OH^{-}=2H_{2}O$
13. $Ni(OH)_{2}+2e^{-}=Ni+2OH^{-}$
14. $H_{2}+Ni(OH)_{2}=Ni+2H_{2}O$
15. $O_{2}+4e^{-}+2H_{2}O=4OH^{-}$
16. ${\rm {4AsF_{3}+2AsCl_{3}+3Cl_{2}=3\left[AsCl_{4}\right]^{+}\left[AsF_{4}\right]^{-}}}$
17. ${\rm {ClF+HNO_{3}=ClONO_{2}+HF}}$
18. ${\rm {4ClONO_{2}+\left[AsCl_{4}\right]^{+}\left[AsF_{4}\right]^{-}=4Cl_{2}+\left[As(ONO_{2})_{4}\right]^{+}\left[AsF_{4}\right]^{-}}}$
19. ${\rm {\left[As(ONO_{2})_{4}\right]^{+}\left[AsF_{4}\right]^{-}{\xrightarrow {160-170^{\circ }C}}2AsOF_{2}+2N_{2}O_{5}}}$

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