
邛崃高中复读看分数吗相关问题汇总
1、高中复读生要加分吗?
2、高考复读生可以读公办吗?
3、高中能够复读么?
4、高考复读复读好吗?
5、今年高三可不可以复读?
邛崃高中复读看分数吗入学检测化学选择题摘录
1、工业上利用天然气(主要成分为CH4)与CO2进行高温重整制备CO,已知CH4、H2和CO的燃烧热(ΔH)分别为-890.3 kJ·mol-1、-285.8 kJ·mol-1和-283.0 kJ·mol-1,则生成1 m3(标准状况)CO所需热量为( )
A.247.3 kJ B.494.6 kJ
C.2.76×103 kJ D.5.52×103 kJ
【知识点】化学的反应中的物质变化和能量变化单元测试
【答案】
解析 首先写出热化学方程式:
CH4(g)+2O2(g)===CO2(g)+2H2O(l) ΔH=-890.3 kJ·mol-1①
CO(g)+O2(g)===CO2(g) ΔH=-283.0 kJ·mol-1②
H2(g)+O2(g)===H2O(l) ΔH=-285.8 kJ·mol-1③
①-(②+③)×2得CH4(g)+CO2(g)===2CO(g)+2H2(g)
ΔH=+247.3 kJ·mol-1
故标准状况下生成1 m3 CO所需热量为×
×(+247.3 kJ·mol-1)≈5.52×103 kJ。
答案 D
2、有机物可能存在同分异构现象,下列化学式只表示一种纯净物的是( )
A.C7H8O B.C3H8
C.C2H4Br2 D.C3H6O2
【知识点】烃的衍生物单元测试
【答案】
B
3、关于同温同压下等体积的CO2和CO的叙述:
①质量相等 ②密度相等 ③所含分子数相等 ④所含原子个数相等,其中正确的是 ( )
A.③ B.②③④ C.③④ D.①②③④
【知识点】物质的量单元测试
【答案】
A
邛崃高中复读看分数吗入学检测英语选择题摘录
1、 Also when you write your goals in a particular way you are able to make yourself continuously ______ situations that will bring you nearer to your goal.
A. aware of B. worried about C. familiar with D. accustomed to
【知识点】词组 短语 【答案】
A
2、 __________ many times, but he made the same mistake again.
A. Although I had warned him B. Having warned him
C. Having been warned D. I had warned him
【知识点】其他 【答案】
D
3、 So much of interest ________ that most visitors simply run out of time before seeing it all.
A. offers Beijing B. Beijing offers C. does
【知识点】倒装与省略 【答案】
C4、 When I go out in the morning, I use the bike the car if I can.
A. other than B. rather than C. better than D. more than
【知识点】其他 【答案】
B
解析:略
关于邛崃高中复读看分数吗相关信息,小编就整理到这里,感谢大家一如既往的支持,如有其它问题需要咨询,请直接联系我们。