黑龙江省新时代高中教育联合体20252026学年高三上学期开学考(8月)化学试题于2025-08-27发布，目前免费查试卷答案网站已经汇总了黑龙江省新时代高中教育联合体20252026学年高三上学期开学考(8月)化学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。

试题答案

本文从以下几个角度介绍。

    1、黑龙江省新时代高中教育联合体2025-2026学年高三上学期开学考(8月)政治试题


    3、黑龙江省新时代高中教育联合体2025-2026学年高三上学期开学考(8月)化学试题


    transfer
    to do 4.had;time 5.Why;make
    三、l.Can your parents2.an;story3.an11-四、l.C2.C3.B4.D5.C6.B7.C
    minute/an eleven-minute 4.Does your 5.
    8.A9.D10.B11.B12.C13.D
    is that
    14.A15.D


    10．A．another B．the other C．other D．others
    二、完形填空 (本大题共15小题, 每小题1分, 共15分。)
    （2025七下·中山期末）Ou Pingqin was a teacher in a 11． school in Huangshi. The school was for deaf and mute (哑的) students who can't hear or speak.
    After Ou finished college, she went to this school alone and have worked there for nearly sixteen 12． . The headmaster of the school said, "She worked hard and 13． the most carefully. She was one of the most excellent teachers in our school. She 14． the students and was also the most welcome teacher among the students. For students, she was like a mother. They called her ‘Little Mother'."
    One day, when she was 15． with her students in the dormitory (宿舍), something heavy was falling down. It was 16． . At that time, without thinking about 17． , she pushed two students away, but she was 18． heavily. However, she 19． working with great pain (疼痛) later.
    One of her workmates said, "Ou Pingqin was not only a teacher but also a mother to her students in her class. She 20． their studies and even their life." A student's 21． said, "She was very warm-hearted. My son lost his father who 22． the family. Every month, the teacher gave him 100 yuan to buy books. We really thank for the 23． and money."
    Ou Pingqin's kindness and spirit have caught much 24． in the country. She was 25． with the students and she gave them great love. She is really a beautiful teacher.


    1、黑龙江省新时代高中教育联合体2025-2026学年高三上学期开学考(8月)数学试题


    1、黑龙江省新时代高中教育联合体2025-2026学年高三上学期开学考(8月)英语试题


    2、黑龙江省新时代高中教育联合体2025-2026学年高三上学期开学考(8月)历史试题


    2、黑龙江省新时代高中教育联合体2025-2026学年高三上学期开学考(8月)语文试题


    1、黑龙江省新时代高中教育联合体2025-2026学年高三上学期开学考(8月)英语试题


    1、黑龙江省新时代高中教育联合体2025-2026学年高三上学期开学考(8月)生物试题


    【答案】D
    【知识点】离子方程式的书写
    【解析】【解答】A．浓硫酸有强氧化性，将Se氧化为SeO2，同时浓硫酸被还原生成SO2，正确的化学方程式为CuSe+4H2SO4(浓)CuSO4+SeO2+3SO2↑+4H2O，A错误；
    B．过氧化钠与水反应时，过氧化钠既是氧化剂又是还原剂，O2中的氧原子全部来自Na2O2，不含18O ，则正确的离子方程式为2Na2O2+2H218O=4Na++2OH-+218OH-+O2↑，B错误；
    C．遇水强烈水解生成盐酸和硫酸，正确的离子方程式为SO2Cl2+2H2O=+4H++2Cl-，C错误；
    D．少量氯气通入碳酸钠溶液中，氯气先与水反应生成盐酸和次氯酸，酸性强弱：H2CO3>HClO>，则盐酸和次氯酸均能与碳酸钠反应生成碳酸氢钠，反应的离子方程式为Cl2+2+H2O=2+Cl-+ClO-，D正确；
    故选D。


    D．图丁表示0.100 0 mol·L－1 NaOH溶液滴定20.00 mL 0.100 0 mol·L－1醋酸溶液的滴定曲线
    3.3一元酸HX和HY都是20 mL，分别用0.100 0 mol·L－1 NaOH溶液滴定，滴定曲线如图，下列说法正确的是(　　)
    A．用0.100 0 mol·L－1 NaOH溶液滴定HX时，选用甲基橙作指示剂，测定结果偏低
    B．HX可能是HCl，HY可能是CH3COOH
    C．HX和HY的物质的量浓度可能都为1.000 mol·L－1
    D．a点和b点对应溶液的导电性相同
    3.4室温下，向a点(pH＝a)的20.00 mL 1.000 mol·L－1氨水中滴入1.000 mol·L－1盐酸，溶液pH和温度随加入盐酸体积变化曲线如图所示。下列有关说法错误的是(　　)


    3、黑龙江省新时代高中教育联合体2025-2026学年高三上学期开学考(8月)生物答案