练习一
一、CDCCDDDA
二、1-10、BADACABBDABC 11、药匙 10mL量筒 铁架台、试管架 12、（1）无色 有特殊气味 密度比水小 不溶于水沸点80.1℃熔点5.5℃
（2）能和氧气、溴、浓流酸、浓硝酸等物质反应（3）2C6H6+15O2点燃=12CO2+6H2O 13、a坩埚钳 b石棉网 防止反应生成的固体物质烫坏试验台
发出耀眼的白光 放热 产生白色的固体 14、烧杯破裂 试管破裂 酒精灯爆炸 标签被**腐蚀
三、15、外焰 验纯 放些水 保持水平 16、瓶底没有放水 试管口没有放棉花 试管外壁有水珠
练习二
一、BCBDCACA
二、9、密度比空气大 助燃性 10、酒精灯 试管 铁架台 集气瓶 倾斜 药匙 纸槽 底部 **受热均匀 刚开始排出的是空气 气泡均匀冒出时用集
气瓶收集 正 无色 将导管从水面拿出 熄灭酒精灯 11、 4P+5O2点燃=2P2O5 NH4HCO3加热=NH3↑+H2O+O2↑ C+O2点燃=CO2 2Cu+O2加热=2CuO
2KMno4加热=K2mno4+Mno2+O2↑
三、12、锥形瓶 长颈漏斗 CO2 密度比口气小 不可燃 不助燃 灭火 与空气充分接触 瓶底没有放些水 剧烈燃烧，火星四射 含碳量 13、不
一样 红磷燃烧时消耗氧气水进入瓶内的5分之1，木炭燃烧CO2，水不进入集气瓶 14、蜡烛燃烧 产生机不可燃也不助燃的CO2 蜡烛燃烧产生的CO2
先接向高的蜡烛 O2的密度大于口气的密度 A
练习三
一、DBCBBAABCDABDC
二、16、4 1 2 O2 CO2 Ca2＋ Cl NH4HCO3 17、2K＋ CO32－ CO2 Ar N2 SO2 NH4HCO3 18、BCAD 19、酚酞试液
由试管口向试管内逐渐变红 微粒在不停地运动 胶头滴管 吸取液体
三、略 去看照片吧
练习四
一、CACDBDCBBB
二、11、可助燃性 稳定性好 有给氧环境 12、CH4+2O2点燃=CO2+2H2O 遇到了明火或与空气中的粉尘接触 CO可作燃料但有毒性 13、氧气的密度
大于空气的密度 既不可然也不助燃 14、化学反应吸热使周围温度降低 使温度下降到可燃物着火点以下 NO2CO3+2HCl=2NaCl+H2O+CO2↑
三、15、方程式没配平 氢分子的相对分子质量2 不一定恰好反应 设的时候不能有单位 16、照片...
练习五
一、BCCCACDDBCF
二、11、CO2+Ca（OH）2=CaCO3↓+H2O+CO2 4Al+3CO2=2Al2O3 Fe+2HCl=FeCl+H2↑ 3CO2+Fe2O3高温=2Fe+3CO2 12、混合物 Zn+2HCl=ZnCl+H2↑
13、CO2 CO C+O2点燃=CO2 3CO+Fe2O3高温=2Fe+3CO2 14、使管内空气排尽 d b c Fe2O3+3CO高温=2Fe+3CO2 15、做门窗 强 猜想：Al的活动
性比Fe强 方法：分别将HCl加入Al和Fe中 现象:Al反应速率比Fe的慢 结论：Al的活动性比Fe强
三、照片...
接下来有的没有打出来的 是么有教滴 额...也许是我不会做
练习六
一、1-9 DACCBCCBB P131么有做 14、 4 2 1 3 15、瓶盖应倒放在桌上 50 减少药物 100 3／80 加快NaCl的溶解 2 16、略 17、920
901.6 3/8300 计算 称量 溶解 18、C6H12O6 53.3％ 照片...
练习七
一、略 P134 3CO+Fe2O3点燃=2Fe+3CO2 直接点燃 2、搅拌 蒸发 过滤 分馏 3、Fe3O4 火箭燃烧 Fe+CuSO4=Cu+FeSO4 置换反应 4、3CO+Fe2O3
高温=2Fe+3CO2 Fe+H2SO4=FeSO4+H2↑ 2Cu+H2O+O2+CO2=Ca(OH)2CO3 5、Na2CO3+2HCl=2NaCl+H2O+CO2↑ Fe+CuSO4=FeSO4+Cu CO2+Cu（OH）2=CuCO3
+H2O
二、6、铁架台 分液漏斗 集气瓶 防止加热时粉末进入导管堵塞 2KMnO4加热=K2MnO4+MnO4+MnO2+O2 H2O2 控制反应速率 B CD CaCO3+2HCl=CaCl2+
H2O+CO2↑ 7、H2SO4 CuSO4+Ag=AgSO4+Cu 把铜丝插入稀盐酸中现象，把铁丝插入稀盐酸中现象 8、不生成污染工作，易控制反应速率 成本高 反应
速率快 得到的CO2气体不纯 同上 9、2NaOH+CO2=Na2CO3+H2O 木炭 木炭燃烧生成CO2，气压不变 红磷量不足装置漏气 分离浓盐酸
三、10、90 影响 11、照片....
12、10℃-30℃ 137 略
worry about
be divided into
worry too much
keep secrets
fargue with sb.
forgive sb. for sth.
show off
give up easily
take care of
pay attention to
different kinds of ideas
devote to charity
modest generous
unlucky shy
hard-working inpatient
impossible unfair
inactive full
dishonest incorrect
weak stupid
to save
not meeting
to eat
explaining
putting
butterfiles
planning
unfair
leader
energetic
What is he like
What does Sam often dream about
Which women is our new teacher
The were divided into 4 groups by Mr zhang
His young sister is taken care of by Peter
Your star sign is divided by your birthday
His mother is so kind that shi helps others
There is nothing wrong with Jim's mind
He is clever enough to solve the problem
Can you tell me how to get to the nearest shop
AAABB ADBAD AC
CBCDA DABCD
CACCCAB
作文略
英语练习二
prefer
would rather
would rather
prefer
would rather
would rather
prefer
prefer
prefer
nothing
noting
everybody
nobody
anything
nothing
none
anyone
everyone
something
everybody
BABDA CBCBB
I prefer watching TV to go to have a walk with you
It's interesting to chat with others
If you fell sad or scared,try to wear in yellow
She painted the wall blue and hope it will bring you success
I think it will rain
BCBCA DBADB
CDCBBC
作文略
英语练习三
from
at
about
whti
to
on
about
in
feel stressed
at the moment
be very valuable
on time
hand in
give up doing sth.
plenty of
hear from sb.
a piece of advice
forget to do sth.
go out late
be in trouble
though
attention
confidence
talented
prouds
replied
miss
spare
on worries
shout
stressed
causing
weight
balance
covers
getting
has come
to follow
walk
to deal
listening
to help
clean
drawing
to catch
to tell
fell
smoking
don't
to buy
discussing
hasn't finished
to meet
to write
sitting
to stay
to save
CACBA ADDDA A
BCDCC BDCAA
CADCDD
作文略
英语练习四
reported
especially
series
months
interview
director
prize
cartoon
movie
announced
website
space
DADBB ACADD
talking
think
lasted
quicker
much homework to do that i have no time to watch TV
Why these tigers are being killed
a number of
beautifully==>beatuflyu
hardly==>hard
back==>去掉
all==> both
are==>去掉
boring==>bored
any==>后面加 other
more==>much
very==>去掉
in ==>of
of==>in
BCADA BACBC
BCAAACDACB
英语练习五
acting
to be
loss
to become
successful
beauty
beginning
was chosen
final
achievement
not only but also other parts
mounded loss of
beauty charm attracted attention
during her lifetime earned four more nominations
achievements went beyong industry
consider not just as humanitarian
put most to
later received interesting gift
explain of class
sure if you are right
am i==>换成 i am
was==>后面加to
to==>for
finally==>final
to==>去掉
to==>去掉
into==>去掉
include==>including
devoted
will take
was watching
marks marks
to take
dream
was taken
look
will find
were watering
bring
DBBCCADC
BDDCBADCCC
CCABDDAACB
英语练习六
energetic
represents
easily
thousand
quarrelling
advice
ours
shares
attacked
bored
The ice is thick enough to skate on
Red can help you easily make a decision when you have difficulty
I don't know how to cheer you up
She is not only pretty but also polite
This morningteachers askedme why i was late
DBCAD BBADA CACB
DCABA CCACD BDCAD DCBCA
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