山西省阳泉市20242025学年度高一第二学期期末教学质量监测语文试题于2025-06-25发布,目前免费查试卷答案网站已经汇总了山西省阳泉市20242025学年度高一第二学期期末教学质量监测语文试题的各科答案和试卷,更多试卷答案请关注免费查试卷答案网站。

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    4、山西省阳泉市2024-2025学年度高一第二学期期末教学质量监测数学试题


    6、山西省阳泉市2024-2025学年度高一第二学期期末教学质量监测生物试题


    C. see
    D. will see
    5. —Would you like to watch the 3D film Titanic with me
    —Certainly. I don't mind seeing it again although I ______ it twice.
    A. saw
    B. was seen
    C. have seen


    We soldiers received many “To any service member” mails from the States. Those mails were sent by the general public in our mother country to soldiers far away from home, as an expression of support. I never took any of those letters, since I wrote to my wife on a daily basis, as well as occasionally writing notes to my daughter Jenny’s classroom, and I didn’t feel I had time to write to anyone else.
    After five or fix months of hearing from the mail—announcing the availability of “To any service member” mail, I decided to take a few of the letters. Because I planned, as time permitted, to drop them a line telling them “Thanks” for their support.
    I picked up three letters, and placed them in my cargo pocket and went back to work. Over the next week or so, I started responding to the letters. When it came time to answer the third letter, I noticed it had no return address, but a California postmark, which made me think of home. I had missed spending Thanksgiving, Christmas and New Year’s with my family. Homesickness seized me.
    I opened the card and started to read the letter attached, which was a short one. About the third or fourth sentence down, it read, “My daddy is a soldier over there, if you see him tell him hi and I love and miss him.” This statement really touched me and made me miss my family even more. Looking down to the name of the sender, I sat in silence as tears filled my eyes.
    66. Who will usually write “To any service member” mails (No more than 8 words)
    67. Why did the author decide to answer some “To any service member” mails later (No more than 10 words)
    68. What set the author missing his own family (No more than 5 words)


    2、山西省阳泉市2024-2025学年度高一第二学期期末教学质量监测地理试题


    6、山西省阳泉市2024-2025学年度高一第二学期期末教学质量监测地理试题


    2、山西省阳泉市2024-2025学年度高一第二学期期末教学质量监测地理试题


    6、山西省阳泉市2024-2025学年度高一第二学期期末教学质量监测 试题


    4、山西省阳泉市2024-2025学年度高一第二学期期末教学质量监测化学试题


    2、山西省阳泉市2024-2025学年度高一第二学期期末教学质量监测 试题


    一、有机物中氢原子种类的判断及应用
    二、有机物分子式及结构简式的确定
    课时对点练
    有机物中氢原子种类的判断及应用
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    <


    【答案】(2) 将焙烧后的产物碾碎,增大接触面积 增大硫酸的浓度等
    (3) B Fe(OH)3 CaSO4 SiO2
    (5)置换Cu2+为Cu从而除去
    【分析】由题干信息,菱锌矿的主要成分为ZnCO3,杂质为SiO2以及Ca、Mg、Fe、Cu等的化合物,结合流程图分析,菱锌矿焙烧,主要发生反应ZnCO3ZnO+CO2↑,再加入H2SO4酸浸,得到含Zn2+、Ca2+、Mg2+、Fe2+、Fe3+、Cu2+的溶液,加入物质X调节pH=5,结合表格数据,过滤得到Fe(OH)3、CaSO4、SiO2的滤渣①,滤液①中主要含有Zn2+、Cu2+、Mg2+、Ca2+、Fe2+,再向滤液①中加入KMnO4溶液氧化Fe2+,过滤得到Fe(OH)3和MnO2的滤渣②,滤液②中加入锌粉,发生反应Zn+Cu2+=Zn2+=Cu,过滤后得到滤渣③为Cu,再向滤液③中加入HF脱钙镁,过滤得到滤渣④为CaF2、MgF2,滤液④为ZnSO4溶液,经一系列处理得到ZnSO4·7H2O,据此分析解答。
    【解析】(2)可采用将焙烧后的产物碾碎,增大接触面积、增大硫酸的浓度等方式提高锌的浸取率;
    (3)A.NH3·H2O易分解产生NH3污染空气,且经济成本较高,故A不适宜;B.Ca(OH)2不会引入新的杂质,且成本较低,故B适宜;C.NaOH会引入杂质Na+,且成本较高,C不适宜;故答案选B;
    当沉淀完全时(离子浓度小于10-5mol/L),结合表格Ksp计算各离子完全沉淀时pH<5的只有Fe3+,故滤渣①中有Fe(OH)3,又CaSO4是微溶物,SiO2不溶于酸,故滤渣①的主要成分是Fe(OH)3、CaSO4、SiO2;


    3、山西省阳泉市2024-2025学年度高一第二学期期末教学质量监测化学答案