威慑的同音词。急
危舍：意思是危险的屋舍，危险的房子。
不确定对不对。
汽车音响问题！急
最简单的办法就买个车载MP3 插在点菸器上那种，几十元钱。外接低音炮的方式是要使用功放的。
急！急！急！求“爱姐谢帅”的藏头诗！
爱赋诗篇寄心语 （我把我的爱写成诗词，寄托内心的言语）
姐貌玉颜如知己 （你貌美如玉，不染瑕疵，是我的红颜知己）
谢天恩赐好姻缘 （感谢上天让我与你相识）
帅气潇潇用情深 （ 君子风度翩翩用情至深-只为伊人）
原创 晴诗雨敬上
钢板的下料公式？？？？急！
你找下点信钢板开料软体吧，相信可以帮到你
高中化学 急 谢谢
一. 非金属单质（F2，Cl2,O2,S,N2,P,C,Si）
1、氧化性：
F2+H2===2HF F2+Xe(过量)===XeF2 2F2（过量）+Xe===XeF4
nF2+2M===2MFn(表示大部分金属) 2F2+2H2O===4HF+O2
2F2+2NaOH===2NaF+OF2+H2O F2+2NaCl===2NaF+Cl2
F2+2NaBr===2NaF+Br2 F2+2NaI===2NaF+I2 F2+Cl2(等体积)===2ClF
3F2(过量)+Cl2===2ClF3 7F2(过量)+I2===2IF7
Cl2+H2===2HCl 3Cl2+2P===2PCl3 Cl2+PCl3===PCl5
Cl2+2Na===2NaCl 3Cl2+2Fe===2FeCl3 Cl2+2FeCl2===2FeCl3
Cl2+Cu===CuCl2 2Cl2+2NaBr===2NaCl+Br2 Cl2+2NaI===2NaCl+I2
5Cl2+I2+6H2O===2HIO3+10HCl Cl2+Na2S===2NaCl+S
Cl2+H2S===2HCl+S Cl2+SO2+2H2O===H2SO4+2HCl Cl2+H2O2===2HCl+O2
2O2+3Fe===Fe3O4 O2+K===KO2
S+H2===H2S 2S+C===CS2 S+Fe===FeS S+2Cu===Cu2S
3S+2Al===Al2S3 S+Zn===ZnS
N2+3H2===2NH3 N2+3Mg===Mg3N2 N2+3Ca===Ca3N2
N2+3Ba===Ba3N2 N2+6Na===2Na3N N2+6K===2K3N
N2+6Rb===2Rb3N
P4+6H2===4PH3 P+3Na===Na3P 2P+3Zn===Zn3P2
2、还原性
S+O2===SO2 S+H2SO4(浓)===3SO2+2H2O
S+6HNO3(浓)===H2SO4+6NO2+2H2O 3S+4HNO(稀)===3SO2+4NO+2H2O
N2+O2===2NO
4P+5O2===P4O10(常写成P2O5) 2P+3X2===2PX3（X表示F2，Cl2，Br2）
PX3+X2===PX5 P4+20HNO3(浓)===4H3PO4+20NO2+4H2O
C+2F2===CF4 C+2Cl2===CCl4 2C+O2(少量)===2CO
C+O2(足量)===CO2 C+CO2===2CO C+H2O===CO+H2(生成水煤气)
2C+SiO2===Si+2CO(制得粗矽)
Si(粗)+2Cl===SiCl4 (SiCl4+2H2===Si(纯)+4HCl) Si(粉)+O2===SiO2
Si+C===SiC(金刚砂) Si+2NaOH+H2O===Na2SiO3+2H2
3、（碱中）歧化
Cl2+H2O===HCl+HClO（加酸抑制歧化，加碱或光照促进歧化）
Cl2+2NaOH===NaCl+NaClO+H2O Cl2+2Ca（OH）2===CaCl2+Ca（ClO）2+2H2O
3Cl2+6KOH（热，浓）===5KCl+KClO3+3H2O 3S+6NaOH===2Na2S+Na2SO3+3H2O
4P+3KOH（浓）+3H2O===PH3+3KH2PO2
11P+15CuSO4+24H2O===5Cu3P+6H3PO4+15H2SO4
3C+CaO===CaC2+CO 3C+SiO2===SiC+2CO
二．金属单质（Na，Mg，Al，Fe）的还原性
2Na+H2===2NaH 4Na+O2===2Na2O 2Na2O+O2===2Na2O2
2Na+O2===Na2O2 2Na+S===Na2S（爆炸） 2Na+2H2O===2NaOH+H2
2Na+2NH3===2NaNH2+H2 4Na+TiCl4（熔融）===4NaCl+Ti
Mg+Cl2===MgCl2 Mg+Br2===MgBr2 2Mg+O2===2MgO
Mg+S===MgS Mg+2H2O===Mg（OH）2+H2
2Mg+TiCl4（熔融）===Ti+2MgCl2 Mg+2RbCl===MgCl2+2Rb
2Mg+CO2===2MgO+C 2Mg+SiO2===2MgO+Si Mg+H2S===MgS+H2
Mg+H2SO4===MgSO4+H2
2Al+3Cl2===2AlCl3 4Al+3O2===2Al2O3（钝化）
4Al(Hg)+3O2+2xH2O===2(Al2O3.xH2O)+4Hg（铝汞齐）
4Al+3MnO2===2Al2O3+3Mn 2Al+Cr2O3===Al2O3+2Cr 2Al+Fe2O3===Al2O3+2Fe
2Al+3FeO===Al2O3+3Fe 2Al+6HCl===2AlCl3+3H2
2Al+3H2SO4===Al2(SO4)3+3H2
2Al+6H2SO4(浓)===Al2(SO4)3+3SO2+6H2O(Al,Fe在冷,浓的H2SO4,HNO3中钝化)
Al+4HNO(稀)===Al(NO3)3+NO+2H2O 2Al+2NaOH+2H2O===2NaAlO2+3H2
2Fe+3Br2===2FeBr3 Fe+I2===FeI2 Fe+S===FeS
3Fe+4H2O(g)===Fe3O4+4H2 Fe+2HCl===FeCl2+H2 Fe+CuCl2===FeCl2+Cu
Fe+SnCl4===FeCl2+SnCl2(铁在酸性环境下,不能把四氯化锡完全还原为单质锡Fe+SnCl2==FeCl2+Sn)
三．非金属氢化物(HF,HCl,H2O,H2S,NH3)
1、还原性:
4HCl(浓)+MnO2===MnCl2+Cl2+2H2O 4HCl(g)+O2===2Cl2+2H2O
16HCl+2KMnO4===2KCl+2MnCl2+5Cl2+8H2O
14HCl+K2Cr2O7===2KCl+2CrCl3+3Cl2+7H2O
2H2O+2F2===4HF+O2 2H2S+3O2(足量)===2SO2+2H2O
2H2S+O2(少量)===2S+2H2O 2H2S+SO2===3S+2H2O
H2S+H2SO4(浓)===S+SO2+2H2O 3H2S+2HNO(稀)===3S+2NO+4H2O
5H2S+2KMnO4+3H2SO4===2MnSO4+K2SO4+5S+8H2O
作者： 爱上下雨天使 2008-5-17 19:58 回复此发言
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2 回复：【无敌】高中所有的化学方程式~~~
3H2S+K2Cr2O7+4H2SO4===Cr2(SO4)3+K2SO4+3S+7H2O
H2S+4Na2O2+2H2O===Na2SO4+6NaOH
2NH3+3CuO===3Cu+N2+3H2O 2NH3+3Cl2===N2+6HCl
8NH3+3Cl2===N2+6NH4Cl 4NH3+3O2(纯氧)===2N2+6H2O
4NH3+5O2===4NO+6H2O 4NH3+6NO===5N2+6HO(用氨清除NO)
NaH+H2O===NaOH+H2 4NaH+TiCl4===Ti+4NaCl+2H2
CaH2+2H2O===Ca(OH)2+2H2
2、酸性:
4HF+SiO2===SiF4+2H2O（此反应广泛应用于测定矿样或钢样中SiO2的含量）
2HF+CaCl2===CaF2+2HCl
H2S+Fe===FeS+H2 H2S+CuCl2===CuS+2HCl H2S+2AgNO3===Ag2S+2HNO3
H2S+HgCl2===HgS+2HCl H2S+Pb(NO3)2===PbS+2HNO3
H2S+FeCl2===FeS+2HCl
2NH3+2Na==2NaNH2+H2 (NaNH2+H2O===NaOH+NH3)
3、碱性：
NH3+HCl===NH4Cl NH3+HNO3===NH4NO3 2NH3+H2SO4===(NH4)2SO4
NH3+NaCl+H2O+CO2===NaHCO3+NH4Cl（此反应用于工业制备小苏打，苏打）
4、不稳定性：
2HF===H2+F2 2HCl===H2+Cl2 2H2O===2H2+O2 2H2O2===2H2O+O2
H2S===H2+S 2NH3===N2+3H2
四．非金属氧化物
1、低价态的还原性：
2SO2+O2+2H2O===2H2SO4（这是SO2在大气中缓慢发生的环境化学反应）
2SO2+O2===2SO3 SO2+Cl2+2H2O===H2SO4+2HCl SO2+NO2===SO3+NO
SO2+Br2+2H2O===H2SO4+2HBr SO2+I2+2H2O===H2SO4+2HI
2NO+O2===2NO2
NO+NO2+2NaOH===2NaNO2（用于制硝酸工业中吸收尾气中的NO和NO2）
2CO+O2===2CO2 CO+CuO===Cu+CO2 3CO+Fe2O3===2Fe+3CO2
CO+H2O===CO2+H2
2、氧化性：
SO2+2H2S===3S+2H2O SO3+2KI===K2SO3+I2
NO2+2KI+H2O===NO+I2+2KOH（不能用淀粉KI溶液鉴别溴蒸气和NO2）
4NO2+H2S===4NO+SO3+H2O 2NO2+Cu===4CuO+N2
CO2+2Mg===2MgO+C(CO2不能用于扑灭由Mg,Ca,Ba,Na,K等燃烧的火灾)
SiO2+2H2===Si+2H2O SiO2+2Mg===2MgO+Si
3、与水的作用:
SO2+H2O===H2SO3 SO3+H2O===H2SO4 3NO2+H2O===2HNO3+NO
N2O5+H2O===2HNO3 P2O5+H2O===2HPO3
P2O5+3H2O===2H3PO4(P2O5极易吸水,可作气体干燥剂)
P2O5+3H2SO4(浓)===2H3PO4+3SO3 CO2+H2O===H2CO3
4、与碱性物质的作用:
SO2+2NH3+H2O===(NH4)2SO3 SO2+(NH4)2SO3+H2O===2NH4HSO3
(这是硫酸厂回收SO2的反应.先用氨水吸收SO2,再用H2SO4处理:2NH4HSO3+H2SO4===(NH4)2SO4+2H2O+2SO2生成的硫酸铵作化肥,SO2回圈作原料气)
SO2+Ca(OH)2===CaSO3+H2O(不能用澄清石灰水鉴别SO2和CO2.可用品红鉴别)
SO3+MgO===MgSO4 SO3+Ca(OH)2===CaSO4+H2O
CO2+2NaOH(过量)===Na2CO3+H2O CO2(过量)+NaOH===NaHCO3
CO2+Ca(OH)2(过量)===CaCO3+H2O 2CO2(过量)+Ca(OH)2===Ca(HCO3)2
CO2+2NaAlO2+3H2O===2Al(OH)3+Na2CO3 CO2+C6H5ONa+H2O===C6H5OH+NaHCO3
SiO2+CaO===CaSiO3 SiO2+2NaOH===Na2SiO3+H2O(常温下强碱缓慢腐蚀玻璃)
SiO2+Na2CO3===Na2SiO3+CO2 SiO2+CaCO3===CaSiO3+CO2
五．金属氧化物
1、低价态的还原性:
6FeO+O2===2Fe3O4 FeO+4HNO3===Fe(NO3)3+NO2+2H2O
2、氧化性:
Na2O2+2Na===2Na2O（此反应用于制备Na2O）
MgO，Al2O3几乎没有氧化性，很难被还原为Mg，Al.一般通过电解制Mg和Al.
Fe2O3+3H2===2Fe+3H2O(制还原铁粉) Fe3O4+4H2===3Fe+4H2O
3、与水的作用:
Na2O+H2O===2NaOH 2Na2O2+2H2O===4NaOH+O2
(此反应分两步:Na2O2+2H2O===2NaOH+H2O2;2H2O2===2H2O+O2.H2O2的制备可利用类似的反应:BaO2+H2SO4(稀)===BaSO4+H2O2)
MgO+H2O===Mg(OH)2(缓慢反应)
4、与酸性物质的作用:
Na2O+SO3===Na2SO4 Na2O+CO2===Na2CO3 Na2O+2HCl===2NaCl+H2O
2Na2O2+2CO2===2Na2CO3+O2 Na2O2+H2SO4(冷,稀)===Na2SO4+H2O2
MgO+SO3===MgSO4 MgO+H2SO4===MgSO4+H2O
Al2O3+3H2SO4===Al2(SO4)3+3H2O(Al2O3是两性氧化物:Al2O3+2NaOH===2NaAlO2+H2O)
作者： 爱上下雨天使 2008-5-17 19:59 回复此发言
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3 回复：【无敌】高中所有的化学方程式~~~
FeO+2HCl===FeCl2+3H2O Fe2O3+6HCl===2FeCl3+3H2O
Fe2O3+3H2S(g)===Fe2S3+3H2O Fe3O4+8HCl===FeCl2+2FeCl3+4H2O
六．含氧酸
1、氧化性:
4HClO3+3H2S===3H2SO4+4HCl HClO3+HI===HIO3+HCl
3HClO+HI===HIO3+3HCl HClO+H2SO3===H2SO4+HCl
HClO+H2O2===HCl+H2O+O2(氧化性:HClO>HClO2>HClO3>HClO4,但浓,热的HClO4氧化性很强)
2H2SO4(浓)+C===CO2+2SO2+2H2O 2H2SO4(浓)+S===3SO2+2H2O
H2SO4+Fe(Al)室温下钝化 6H2SO4(浓)+2Fe===Fe2(SO4)3+3SO2+6H2O
2H2SO4(浓)+Cu===CuSO4+SO2+2H2O H2SO4(浓)+2HBr===SO2+Br2+2H2O
H2SO4(浓)+2HI===SO2+I2+2H2O H2SO4(稀)+Fe===FeSO4+H2
2H2SO3+2H2S===3S+2H2O 4HNO3(浓)+C===CO2+4NO2+2H2O
6HNO3(浓)+S===H2SO4+6NO2+2H2O 5HNO3(浓)+P===H3PO4+5NO2+H2O
6HNO3+Fe===Fe(NO3)3+3NO2+3H2O 4HNO3+Fe===Fe(NO3)3+NO+2H2O
30HNO3+8Fe===8Fe(NO3)3+3N2O+15H2O 36HNO3+10Fe===10Fe(NO3)3+3N2+18H2O
30HNO3+8Fe===8Fe(NO3)3+3NH4NO3+9H2O
2、还原性:
H2SO3+X2+H2O===H2SO4+2HX (X表示Cl2,Br2,I2) 2H2SO3+O2===2H2SO4
H2SO3+H2O2===H2SO4+H2O 5H2SO3+2KMnO4===2MnSO4+K2SO4+2H2SO4+3H2O
H2SO3+2FeCl3+H2O===H2SO4+2FeCl2+2HCl
3、酸性:
H2SO4(浓)+CaF2===CaSO4+2HF H2SO4(浓)+NaCl===NaHSO4+HCl
H2SO4(浓)+2NaCl===Na2SO4+2HCl H2SO4(浓)+NaNO3===NaHSO4+HNO3
3H2SO4(浓)+Ca3（PO4）2===3CaSO4+2H3PO4
2H2SO4(浓)+Ca3（PO4）2===2CaSO4+Ca（H2PO4）2
3HNO3+Ag3PO4===H3PO4+3AgNO3 2HNO3+CaCO3===Ca（NO3）2+H2O+CO2
（用HNO3和浓H2SO4不能制备H2S，HI，HBr， SO2等还原性气体）
4H3PO4+Ca3（PO4）2===3Ca（H2PO4）2（重钙）
H3PO4（浓）+NaBr===NaH2PO4+HBr H3PO4（浓）+NaI===NaH2PO4+HI
4、不稳定性：
2HClO===2HCl+O2 4HNO3===4NO2+O2+2H2O H2SO3===H2O+SO2
H2CO3===H2O+CO2 H4SiO4===H2SiO3+H2O
七．碱
1、低价态的还原性：
4Fe（OH）2+O2+2H2O===4Fe（OH）3
2、与酸性物质的作用：
2NaOH+SO2（少量）===Na2SO3+H2O NaOH+SO2（足量）===NaHSO3
2NaOH+SiO2===NaSiO3+H2O 2NaOH+Al2O3===2NaAlO2+H2O
2NaOH+Cl2===NaCl+NaClO+H2O NaOH+HCl===NaCl+H2O
NaOH+H2S（足量）===NaHS+H2O 2NaOH+H2S（少量）===Na2S+2H2O
3NaOH+AlCl3===Al（OH）3+3NaCl NaOH+Al（OH）3===NaAlO2+2H2O
（AlCl3和Al（OH）3哪个酸性强？） NaOH+NH4Cl===NaCl+NH3+H2O
Mg（OH）2+2NH4Cl===MgCl2+2NH3.H2O Al(OH)3+NH4Cl不溶解
3、不稳定性:
Mg(OH)2===MgO+H2O 2Al(OH)3===Al2O3+3H2O 2Fe(OH)3===Fe2O3+3H2O
Cu(OH)2===CuO+H2O
八．盐
1、氧化性:
2FeCl3+Fe===3FeCl2 2FeCl3+Cu===2FeCl2+CuCl2 (用于雕刻铜线路版)
2FeCl3+Zn===2FeCl2+ZnCl2 FeCl3+Ag===FeCl2+AgC
Fe2(SO4)3+2Ag===FeSO4+Ag2SO4(较难反应) Fe(NO3)3+Ag不反应
2FeCl3+H2S===2FeCl2+2HCl+S 2FeCl3+2KI===2FeCl2+2KCl+I2
FeCl2+Mg===Fe+MgCl2
2、还原性:
2FeCl2+Cl2===2FeCl3 3Na2S+8HNO3(稀)===6NaNO3+2NO+3S+4H2O
3Na2SO3+2HNO3(稀)===3Na2SO4+2NO+H2O 2Na2SO3+O2===2Na2SO4
3、与碱性物质的作用:
MgCl2+2NH3.H2O===Mg(OH)2+NH4Cl AlCl3+3NH3.H2O===Al(OH)3+3NH4Cl
FeCl3+3NH3.H2O===Fe(OH)3+3NH4Cl
4、与酸性物质的作用:
Na3PO4+HCl===Na2HPO4+NaCl Na2HPO4+HCl===NaH2PO4+NaCl
NaH2PO4+HCl===H3PO4+NaCl Na2CO3+HCl===NaHCO3+NaCl
NaHCO3+HCl===NaCl+H2O+CO2 3Na2CO3+2AlCl3+3H2O===2Al(OH)3+3CO2+6NaCl
3Na2CO3+2FeCl3+3H2O===2Fe(OH)3+3CO2+6NaCl
3NaHCO3+AlCl3===Al(OH)3+3CO2 3NaHCO3+FeCl3===Fe(OH)3+3CO2
3Na2S+Al2(SO4)3+6H2O===2Al(OH)3+3H2S 3NaAlO2+AlCl3+6H2O===4Al(OH)3
5、不稳定性:
Na2S2O3+H2SO4===Na2SO4+S+SO2+H2O NH4Cl===NH3+HCl
NH4HCO3===NH3+H2O+CO2 2KNO3===2KNO2+O2
2Cu(NO3)3===2CuO+4NO2+O2 2KMnO4===K2MnO4+MnO2+O2
2KClO3===2KCl+3O2 2NaHCO3===Na2CO3+H2O+CO2
Ca(HCO3)2===CaCO3+H2O+CO2 CaCO3===CaO+CO2 MgCO3===MgO+CO2
急，求大侠帮忙翻译！
1. Once met one another, always exceeds never meets!
2. I miss you so deep that I am afraid I will not meet you in my time!
3. Thought is on, time brings many things to the world.Thought is out, time brings a great change to the worlds!
4. . Love is that I bury for you many years.
第三句是根据我的理解翻译的
希望能帮到你吧
O(∩_∩)O~
油寖水泵电机资料？急！急！急！
两路星接,我刚给你查我记的资料,一路星行的是1.25线32匝,要是三角接法,就是0.95线56匝.你现在下好电机了,应该接两路星接.潜水泵电流大点没什么的 .
就一句话翻译 急
完成后，你的I-20会通过Express Mail邮寄到如下地址：
急，AI导不出来图片。
3种方法：
1 降低为72解析度
2 缩小档案尺寸
3 汇出为PDF，再在PDF里汇出图片
急~~英语口语考试!!
●Part 1
the things you do in your spare time.
I usually piays badminton with my father .It's my favourite sport.Sometimes l go shopping with my mother,l think it's interesting and exciting.You know that there're many things in big supermarket.They're nice.
Part 2
the ways that young people in your country spend their free time.
I live in Shanghai ,it's an international city.It's modern .Young people in our city often play sport surf the Inter
or play games.Most of them may go to the cinema.But girls usually go shopping with their friends.
●Part 1
about your favourite food.
My favourite food is sushi.Sushi is a kind of Japeniss food.Most of people like this kind of food,so do l.I think sushi is healthy and delicious.If you want to stay healthy,you should eat more healthy food like sushi.That's the reason why l like eating sushi.
Part 2
how to cook a dish that you like.
I like eat meatball.If we want to do this dish.First,you should prepare Meat (aording to their own taste what meat), starch, ginger, green onions, salt, pepper noodles.They're ingredients.Then,you should chopped ginger and green onions , how can there is more than broken pieces (about 2 kg of meat with a large egg ginger, green onions more than ginger points)
Put in meat ginger, green onions, salt, pepper noodles, mix,more than o hours. And then add starch (like half a catty, or more points I always sleep with the time: L), like rubbing surface, like rubbing, kneading massage Afghanistan, and then\ make *** all balls.
Small suggestion: the first time can ist a meatball cook and taste the flavor and less what in Canada.
●Part 1
about your family.
There are five people in my family：my grandparents,my parents and i.my grandparents are retired middle school teachers.they now stay at home.my mother takes care of my grandparents.My father works in a pany,and he is an engineer.There is a long way from our home to my father's pany,so he usually gets up at six o'clock in the morning and es back at about six o'clock in the afternoon.He is the busiest one in our family.
We live in a very nice house on the outskirts of town and we have a beautiful garden in front of it.I love my family very much.
Part 2
Discuss with your partner the important differences in your parents’ childhood/adolescence and your own childhood/adolescence
remember, the yard of my house and I was born with a species桔树together, I often use a knife in the trunk carved a mark every day to measure whether they grow taller. Looking at a section line, I really look forward to a long high as soon as possible. One day, I suddenly found themselves short of the mark than that. My God! Should I should longer? I was very scared, quickly ask mother: "Mom, why do other *** all partners are long high, how do I make it short?" Her mother put her busy living, to me on the chair asked: "Why do so said that, ah! "I jumped busy chair, pulled her mother's hand, pulled her, pointing to the yard, said:" I am every day, a tree carved with a knife in my height, but I did today carved inscriptions in previous cross - line below. "I said as he pointed out in the trees that line the o. After listening to my mother, then looked at the tree, silent for o minutes after the inexplicable laughing, *** iling all直不起腰, the tears e out, patted呆呆silly I looked at her head and said: "Fool, not your dwarf, is tree height, and the future should not be foolish to do this myself." I suddenly realized what had happened, was not I am a dwarf, but the tree height. I am happy to go after playing chicken, I really do not know themselves what would be foolish chicken dry .......