精品解析:2023年福建省中考化学真题(解析版)
【淘宝搜索店铺:中小学教辅资源店微信:mlxt2022】化学试题相对原子质量:H1N14O16Na23Mg24I127一、选择题:本题共10小题,每小题3分,共30分。在每小题给出的四个选项中,只有一项是符合题目要求的。1.自来水厂将天然水净化为饮用水,无需进行的操作是A.降温结晶B.絮凝沉降C.杀菌消毒D.细沙滤水【答案】A【解析】【详解】自来水厂净水过程为:天然水→加絮凝剂→沉降→过滤→吸附→加消毒剂→自来水。故无需进行的操作为降温结晶。故选A。2.下列制造手机用到的材料中,属于有机合成材料的是A.钛合金B.硅晶体C.玻璃D.塑料【答案】D【解析】【详解】A、钛合金属于金属材料,选项错误;...
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