求化學金考卷一輪復習單元滾動雙測卷元素化合物模塊的答案
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金考卷名師名題單元雙測卷政治必修一全部答案
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英語金考卷的答案
選擇題 1.—Thank you very much. — A. That’s OK. B. Good bye. C. Thanks. 答案:A 2.—Are these buses? —Yes, A. it is B .these are C. they are. 答案:C 根據中文提示寫出單詞或詞組使句意完整、正確. 1.Who does she( )(看起來像)? 答案:look like 2.Kate likes oranges( )(一點點). 答案:a little
語文金考卷專題1.2.3答案
1.C 2.B 3.D 4.A 5.C 6.D 7.C 8.D 9.C 10.D 11.C 12.D 13.C 14.D 15.C 16.D 17.B 18.D 19.D 20.C
求金考卷答案,,化學,,高一的,,
化學.其實好學.
第一.不要討厭它.如果做不到喜歡.就做到不討厭就好了.
第二.看書.習題固然很重要.但課本更重要.每講一課.你把這一課的課文看3遍以上.
第三.注意一下每一課的方程式.還有各個方程式的反應條件與現象(問問老師每一個方程式的催化劑都是什么.然后記下來.最后一看反應的催化劑和條件就能知道什么方程式了).這個得下點工夫.如果你能背的爐火純青的話.你不考90也難.
第四.溶解性表.這個是初三必背的.現在也必須背.重中之重!
第五.元素周期表.不用背完.前20必須背.然后學到哪背到哪.
第六.金屬的活動性表和非金屬的活動性表.背一下.只有好處.沒壞處.
第七.找到學化學的感覺和規律.比如:第一章氧化還原反應.除了方程式以外.只用記十個字:失 升 氧 還 氧 ,得 降 還 氧 還
即:失(得)電子.化合價升高(降低).發生氧化(還原)反應.做還原(氧化)劑.得到氧化(還原)產物.
順便記一個四大反應與氧化還原反應的關系.
第八.找本講解類的參考書.多看看.
如果你做的到上面的.高三你就可以考化學競賽了.至少能得個二等獎
補充:
都在這兒了,高中關于堿金屬這一章重點就在鈉,其他的最多也就十來個,可以通過他們的通性推導,考試一般不作要求。
2NaHCO3===Na2CO3+H2O+CO2
Na2S2O3+H2SO4===Na2SO4+S+SO2+H2O
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
3Na2S+8HNO3(稀)===6NaNO3+2NO+3S+4H2O
3Na2SO3+2HNO3(稀)===3Na2SO4+2NO+H2O
2Na2SO3+O2===2Na2SO4
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哪個酸性強?)
NaOH+NH4Cl===NaCl+NH3+H2O
H2SO4(濃)+NaCl===NaHSO4+HCl
H2SO4(濃) +2NaCl===Na2SO4+2HCl
H2SO4(濃)+NaNO3===NaHSO4+HNO3
Na2O+SO3===Na2SO4
Na2O+CO2===Na2CO3
Na2O+2HCl===2NaCl+H2O
2Na2O2+2CO2===2Na2CO3+O2
Na2O2+H2SO4(冷,稀)===Na2SO4+H2O2
Na2O+H2O===2NaOH
2Na2O2+2H2O===4NaOH+O2
CO2+2NaOH(過量)===Na2CO3+H2O
CO2(過量)+NaOH===NaHCO3
NH3+NaCl+H2O+CO2===NaHCO3+NH4Cl
(此反應用于工業制備小蘇打,蘇打)
2NH3+2Na==2NaNH2+H2
(NaNH2+H2O===NaOH+NH3)
2NH3+2Na==2NaNH2+H2
(NaNH2+H2O===NaOH+NH3)
Cl2+2NaOH===NaCl+NaClO+H2O
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衡水金考卷2013~2014學年度高三一輪復習單元測試卷(一)答案
衡水金考卷2013~2014學年度高三一 輪復習單元測試卷(八)答案
【衡水金考卷】2013 – 2014學年度高三一輪復習單元測試卷【一】
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英語高一必修2五單元金考卷答案???
選擇題1.He doesn’t like meat .A.a lot B.a little C.at all 答案:C2.—What are you in?—I’m in Three.A.class, class B.class, Class C.Class, Class 答案:B 填空1. We must brush our (牙齒)before going to bed.答案:teeth2.Don’t_______(借)money to Andy any more! 答案:lend
天星教育(金考卷)七年級上冊第三單元B卷答案(英語)
一、 1. C 2. C 3. D 4. B 5. A 6. D
二、 1. She spends two hours going / It takes hertwo hours to go 2. has become partof 3. is harmful to our health 4. spends so much time on computer games5. you’d better stopworking 6. It’s good for your health
三、 1. It will become hot and there will be painsall over. 2. Because they are very small. 3. We can find them everywhere. 4. It will become big andred. 5. It mainly tells us what germsare and where they are.
四、1.B 2.C 3.D 4.C 5.A 6.C 7.A 8.D 9.B 10.B
八年級下冊英語天星教育金考卷unite3答案
1. B C D A E
2. 1) by bus 2) by train 3) on foot by bike
2
1. C A B F D E
3. on foot by bus by bike
3
1. on foot by bike by bus by train / by car…
2. 1) B 2) A 3) A 4) B
4
3. traffic lights traffic rules stop wait go traffic rules
5
2. How can I by the No.8 bus
3. 1) on foot by bus on foot 2) near the post office
6 1. 1) B 2) A 3) B
2. 1) × 2) × 3) × 4) ×