九年级化学下学期毕业模拟试题VIP免费

ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality. Hold a regular meting of the party secretary every fortnightly, arrange the work of the regiment, fedback the student information. Focus on training junior high school, junior high school secretary of the regiment branch to enable them to raise A firm political conviction, diligent and diligent learning spirit and practical and innovative work style.贵州省六盘水市 2024 届九年级化学下学期毕业模拟试题满分 100 分，考试时间 120 分钟 题 号 一 二 三 总 分 得 分可能用到的相对原子质量：H：l C：12 Fe：56 O：16 Zn：65一、选择题：请将答案填在相应的表格内。(每题只有一个正确答案，共 52 分)题号12345678910111213答案题号14151617181920212223242526答案1．下列变化属于化学变化的是 ( )A. 汽油挥发B. 粉碎矿石 C. 水变成冰D. 木材燃烧2．做实验时固体药品应保存在下列哪种仪器中( )A. 集气瓶B. 细口瓶 C. 烧杯 D. 广口瓶3．读量筒中液体体积时，某同学俯视读数为 20 mL，则实际为( )A. 大于 20 mLB.小于 20 mL C. 等于 20 mLD. 无法推断4．空气成分中，体积分数约占 78%的是( )A．氧气 B．氮气 C．二氧化碳 D．稀有气体5．地壳中含量最多的元素是( )A．铝 B．钙 C．氧 D．硅6．走近花园能闻到花的香味说明 ( )A. 分子很小 B. 分子是可分的 C. 分子之间有间隔 D. 分子在不断地运动7．下列物质中，含有氧分子的是( )Strengthen the team connection, strengthen the knowledge education among the students (especially the first grade students), and promote the formation of good school spirit with the influence of the league members. All League branches should start with recommending outstanding students as the development objects of the League, take amateur league schools as the basis, conscientiously do a good job in the work of pre-league education, league membership educ...