2026年浙江高考化学考试题库附参考答案

2026年浙江高考化学考试题库附参考答案考试时间：90分钟满分：100分姓名：________准考证号：________一、选择题（共15小题，每小题3分，计45分）1、以下变化属于化学变化的是

A.冰融化成水

B.铁生锈

C.酒精挥发

D.石蜡切割成小块2、以下物质中，属于纯净物的是

A.空气

B.盐水

C.氧气

D.河水3、某物质含有Na+、Cl−、SO42−三种离子，该物质可能是4、写出氢氧化钠的电子式，正确的是

A.[Na⁺]·[OH⁻]

B.[Na⁺]·[O:H⁻]

C.[Na⁺]·[O:H⁻]

D.[Na⁺]·[O⁻]·H⁺5、以下关于物质的量的描述正确的是

A.1mol氢气的质量是2g

B.1mol氧气的体积是22.4L

C.氧气的摩尔质量是16g/mol

D.n=6、下列离子方程式书写正确的是

A.CaCO3+2H+=Ca27、下列物质中，既能与酸反应又能与碱反应的是

A.Na2O

B.Al(OH8、以下关于元素周期表的说法正确的是

A.第三周期有18种元素

B.元素的原子序数等于其核外电子数

C.同一周期，从左到右原子半径逐渐增大

D.非金属元素主要集中在周期表左侧9、硝酸的化学式是

A.HNO3

B.HNO2

C.10、下列物质中，属于非电解质的是

A.NaCl

B.CO2

C.11、用大理石与稀盐酸反应制取二氧化碳，该反应的化学方程式是

A.CaCO3+2HCl=Ca12、2.24 L标准状况下的气体，其物质的量为

A.0.1 mol

B.0.2 m13、以下物质中，pH小于7的是

A.纯净水

B.食盐水

C.氢氧化钠溶液

D.14、一种含氧酸根离子的电荷为-1，其化学式为

A.CO32−

B.SO42−15、下列关于元素周期律的说法正确的是

A.同一主族，从上到下，原子半径逐渐减小

B.同一周期，从左到右，元素的非金属性增强

C.碱金属的金属性都比碱土金属强

D.氧族元素中，O的非金属性最强二、非选择题（共5小题，计55分）16、（10分）已知在25°C时，水的电离平衡常数Kw=1×10−14，回答以下问题：

（1）溶液中若[17、（12分）已知铁与盐酸反应生成氯化亚铁和氢气，反应的化学方程式为：

Fe+2HCl=FeCl2+H2↑

回答以下问题：18、（11分）写出乙醇和乙酸在浓硫酸催化下发生酯化反应的化学方程式，并回答以下问题：

（1）反应的条件是什么？

（2）写出酯化反应的机理；

（3）生成的酯的结构简式是什么？19、（12分）完成以下实验设计：

某同学欲通过实验测定某NaCl溶液的物质的量浓度。实验步骤如下：

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