4. 下列说法正确的是A. 石油的分馏属于化学变化B. 蔗糖属于二糖，水解产物为葡萄糖C. 明矾 $[ K A l ( S O _ { 4 } ) _ { 2 } \cdot 1 2 H _ { 2 } O ]$ 可作净水剂，其水溶液呈碱性D. 碳酸氢钠受热分解的化学方程式为 $2 N a H C O _ { 3 } \triangleq N a _ { 2 } C O _ { 3 } + C O _ { 2 } \uparrow + H _ { 2 } O$
4.【答案】D
碳酸钠与碳酸氢钠 · 历年高考化学真题与解析
本页汇总 高考真题检索 的「碳酸钠与碳酸氢钠」高考化学真题共 2 道，覆盖 2022–2026 年，最常出题型为 解答题；含完整答案与解析。
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1. 化学与日常生活息息相关。下列说法错误的是
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