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Gaokao Chemistry Practice Question

下列关于 $\mathrm{Na}$ 的化合物之间转化反应的离子方程式书写正确的是

  1. A.碱转化为酸式盐: $\mathrm{OH}^{-}+2 \mathrm{H}^{+}+\mathrm{CO}_{3}^{2-}=\mathrm{HCO}_{3}^{-}+2 \mathrm{H}_{2} \mathrm{O}$
  2. B.碱转化为两种盐: $2 \mathrm{OH}^{-}+\mathrm{Cl}_{2}=\mathrm{ClO}^{-}+\mathrm{Cl}^{-}+\mathrm{H}_{2} \mathrm{O}$
  3. C.过氧化物转化为碱: $2 \mathrm{O}_{2}^{2-}+2 \mathrm{H}_{2} \mathrm{O}=4 \mathrm{OH}^{-}+\mathrm{O}_{2} \uparrow$
  4. D.盐转化为另一种盐: $\mathrm{Na}_{2} \mathrm{SiO}_{3}+2 \mathrm{H}^{+}=\mathrm{H}_{2} \mathrm{SiO}_{3} \downarrow+2 \mathrm{Na}^{+}$

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