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第76页

信息发布者：

红

$ \ \text {H}_2\ \text {CO}_3\xlongequal[\ \ \ \ \ \ ]{△}\ \text {H}_2\ \text {O}+\ \text {CO}_2↑$

5.6

$ \ \text {CO}_2+\ \text {H}_2\ \text {O}\xlongequal[]{}\ \text {H}_2\ \text {CO}_3$

$ \mathrm{ Na_2CO_3} $

纯碱、苏打

碱性

碳酸钙

大理石或石灰石的主要成分

碳酸钾

$ \mathrm{ K_2CO_3} $

碱性

$ \mathrm{ NH_4HCO_3} $

碳铵

碳酸氢钠

小苏打

碱性

碳酸钙

制生石灰

制玻璃

制取二氧化碳

$ \ \text {CaCO}_3\xlongequal[\ \ \ \ \ \ ]{高温}\ \text {CaO+CO}_2↑$

$ \ \text {CaO}+\ \text {H}_2\ \text {O}\xlongequal[\ \ \ \ \ \ ]{\ \ \ \ \ \ }\ \text {Ca(OH)}_2$

$ \ \text {CO}_2+\ \text {Ca(OH)}_2\xlongequal[\ \ \ \ \ \ ]{\ \ \ \ \ \ }\ \text {CaCO}_3↓+\ \text {H}_2\ \text {O}$

$ \mathrm {CaCl}_{2} $

取样于试管中，加入适量稀盐酸，

将生成的气体通入澄清石灰水，石灰水变浑浊

$ \ \text {CaCO}_3\xlongequal[\ \ \ \ \ \ ]{高温}\ \text {CaO+CO}_2↑$

$ 2\ \text {NaHCO}_3\xlongequal[]{△}\ \text {Na}_2\ \text {CO}_3+\ \text {CO}_2↑+\ \text {H}_2\ \text {O}$

$ \ \text {CaCO}_3+2\ \text {HCl}\xlongequal[\ \ \ \ \ \ ]{\ \ \ \ \ \ }$

$ \ \text {CaCl}_2+\ \text {H}_2\ \text {O}+\ \text {CO}_2↑$

$ \ \text {Na}_2\ \text {CO}_3+2\ \text {HCl}\xlongequal[]{}$

$ 2\ \text {NaCl}+\ \text {H}_2\ \text {O}+\ \text {CO}_2↑$

$ \ \text {Na}_2\ \text {CO}_3+\ \text {Ca(OH)}_2\xlongequal[\ \ \ \ \ \ ]{}\ \text {CaCO}_3↓+2\ \text {NaOH}$

$ \ \text {K}_2\ \text {CO}_3+\ \text {Ca(OH)}_2\xlongequal[\ \ \ \ \ \ ]{}\ \text {CaCO}_3↓+2\ \text {KOH}$

$ \ \text {Na}_2\ \text {CO}_3+\ \text {CaCl}_2\xlongequal[\ \ \ \ \ \ ]{}$

$ 2\ \text {NaCl+CaCO}_3↓$

$ \ \text {BaCl}_2+\ \text {Na}_2\ \text {CO}_3\xlongequal[\ \ \ \ \ \ ]{}$

$ \ \text {BaCO}_3↓+2\ \text {NaCl}$