黑龙江省20252026学年第一学期高一12月考试(11090A)生物答案于2025-12-14发布,目前免费查试卷答案网站已经汇总了黑龙江省20252026学年第一学期高一12月考试(11090A)生物答案的各科答案和试卷,更多试卷答案请关注免费查试卷答案网站。

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1、黑龙江省2025-2026学年第一学期高一12月考试(11090A)地理试题


5、黑龙江省2025-2026学年第一学期高一12月考试(11090A)生物试题


B.visited
C.visiting
D.visit
9.At the age of 22,Xu Xiake
for the first trip.
A.set off
B.sets off


( )9. A. and B. or C. but D. so
( )10. A. spread B. spreads C. spreading D. to spreading
(二)
Last Sunday, I went to the library with my friend. When we got there, we saw a lot of people (1)_____ in line outside the library. We stood in line, too. After a while, we entered the library. It was very quiet inside. People were busy (2)_____ books.
We went to the section where there were many storybooks. I found a book about mysteries. I was really interested in it. I sat down at a table and began to read. (3), I found a page missing. I told the librarian about it. She said, "(4) worry. We can find another copy for you."
While I was waiting for the new book, I walked around the library. I saw a sign on the wall. It said, "Please keep the library (5)_____ and tidy. Don't talk loudly and don't leave rubbish." I thought it was very important to follow the rules in the library.
Finally, I got the new book. I enjoyed (6)_____ it very much. When it was time to leave, I (7)_____ the book to the librarian. She checked it and said everything was OK.


4、黑龙江省2025-2026学年第一学期高一12月 (11090A)语文答案


5、黑龙江省2025-2026学年第一学期高一12月考试(11090A)政治答案


4、黑龙江省2025-2026学年第一学期高一12月考试(11090A)物理答案


3、黑龙江省2025-2026学年第一学期高一12月考试(11090A)化学答案


1、黑龙江省2025-2026学年第一学期高一12月考试(11090A) 试题


4、黑龙江省2025-2026学年第一学期高一12月考试(11090A)生物答案


利用图装置进行电解水实验,实验中所用电源是直流电,由电解水实验结论“正氧一、负氢二”可知,与电源正极相连,产生的气体是;
该实验是探究铁与水蒸气的反应,则图甲中装置对装置中反应的作用是为中的反应提供水蒸气;
加热一段时间后,装置中固体仍为黑色,吹泡器连续吹出气泡,且气泡向上飞起,用燃着的木条靠近气泡,能产生爆鸣声,说明该气体是氢气,氢气的密度比空气小且具有可燃性;
铁与水蒸气在高温条件下反应生成氢气和四氧化三铁,该反应的化学符号表达式为;
水在通电条件下生成氢气和氧气,氢气和氧气在点燃的条件下生成水,氢气由氢元素组成,氧气由氧元素组成,可得出水由氢元素和氧元素组成;
设需要水的质量为,


17.燃烧是生活中常见现象,兴趣小组同学进行了蜡烛燃烧的探究。
(1)实验1:取一支蜡烛,用小刀切下一小块,放入水中发现蜡烛浮在水面上,说明石蜡的密度比水小, ______ (填“易”或“难”)溶于水,硬度小。
(2)实验2:点燃蜡烛,发现蜡烛火焰分为外焰、内焰、焰心三层。用一根木条迅速放入火焰中1~2s后取出,发现木条与外焰接触处炭化变黑,说明蜡烛火焰的 ______ (填“内焰”“外焰”或“焰心”).温度最高,原因是: ______ 。
(3)实验3:将一只干燥的冷烧杯罩在蜡烛火焰的上方,发现烧杯的内壁出现水雾,触摸烧杯外壁感觉到发热,迅速将烧杯倒转过来,倒入少量的澄清石灰水,振荡,发现澄清石水变 ______ ,说明蜡烛燃烧生成了水和 ______ 。
(4)如图1,取一支短导管,将其一端伸入焰心,等另一端有白烟出现时,再将燃着的火柴放到导管口,观察到白烟可以被点燃,证明蜡烛燃烧产生的火焰是由 ______ (填“固态”或“气态”)物质燃烧形成的。若导管长度过长,则实验容易失败,原因是 ______ 。
(5)该小组同学还用数字化传感器监测密闭容器内蜡烛燃烧时氧气、二氧化碳和水蒸气含量的变化,得到变化曲线如图2所示,则曲线 ______ (填“a”、“b”或“c”)代表的是密闭容器内氧气浓度的变化曲线。
三、实验题:本大题共2小题,共34分。


3、黑龙江省2025-2026学年第一学期高一12月考试(11090A)化学答案