江苏省扬州市梅岭中学2017届中考第二次模拟考试化学试题 - 百度文库 ر

ߡ𡭡 ߡ𡭡

6Ƿ______ ȱ______Ԫػᵼ٪֢ 2ĸգ

aK2CO3 bKNO3 cCH4 dFe2O3eNaHCO3 ٿͷ۵______ ڲľҵҪɷ______ Ϸʵ______ ܿȼϵ______

___________š______________________װװ___________:Уѧ𡭡ڡ𡭡Ծ13ҳ13ҳ

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1B

2AB

3AD

4D

5C

6A

7C

8D

9B

10D

11C

12B

13D

14B

15C

16B

17C

18C

19D

20 ڿɶ̼ 2NaOH+CO2==Na2CO3+H2O ɫ̪ CaCl2Һ аɫɣҺɫʧ ƣ̼ в

21 ϡ Fe2O3 + 3H2SO4 = Fe2SO43 + 3H2O C AB 241 3[Fe2OH4SO4]m + 12m HCl =\2SO43 + 4m FeCl3 + 12m H2O SO3SO2O2 նĶ򣬷ֹȾ 3 3.2 g

22 ̨ © ػ A A B ɿƷӦķֹͣ رAB

23 4P + 5O2 BC

ȼ

2P2O5 C C ľϨ Һ 4NH3 + 5O2

߻

4NO + 6H2O

24 c ɰ ܽѹǿļССƿǣѹǿСݳ ˮᣬȲֽ CaCO3 + 2HAc = CaAc2 + H2O +CO2 Һ ϲҺǣҺɺɫΪɫ

25 2Hg 3Cl Na

6C6H12O6 Zn e a b 10c

1

AѡǴΪˮˮСƵŨPHBѡҺԪСȷΪԪصСˮеԪصCѡǴҺԪص䣻DѡǴҺԪȱСʴѡB 㣺ˮʵ

2Ϣ֪A. һĸأһ¶ȿʼֽ⡣AȷB. ȻƵĻҺвϵμ̼ҺҺԣ̼Һ

Ӧ̼ҺҺʼԡBȷC. ϡзֱппãͬпࡣc. D. һƿŨ᳨ڷڿ,ˮ֣١D 㾦ñҪ黯ѧӦ̵ͼʾ

3 ѡ A Ȼƹ ʣ ʯ Լ ϡʯҷӦȻơ ı̼ҺᷴӦɶ̼ Һ FeCuSO4Һûͭ ᾧAȷ ϴB ˡC ˡDȷ B H2 HCl C D FeSO4Һ CuSO4Һ 㾦ñҪйس֪ʶ

4һɵʽдһԪɵĴеʣɲͬԪɵĴлԪɣһĻAɴԪɣB.ѧʽԪط½ǵΪһԭӵĸһɴ10̼ԭӡ20ԭӺ1ԭӹɣC. Ԫص=ԭԭӸ֮ȣɴ̼ԪءԪغԪصΪ1012201116=1035114=30:5:4D. Ԫص

= 100%ɴ̼Ԫص

ԼΪ1012£1012+201+116100%=76.9%ѡD

5л߷ӻC. ϩA. ࣬B. ֬ D. ƾл

㾦ñҪл߷ӻĸ

6Ϣ֪A. Ҫԭǣ3CO+Fe2O3

2Fe+3CO2B. ͼ

ԭϽ̿òֻṩṩԭBC. ͼʵ鿪ʼʱӦȵȼβƾƣٵȼľƾơCD. ͼеõȫͬģһһD 㾦ñҪһ̼ԭ

7Ϣ֪A. t2ʱABCʵܽȡAȷB. t1棬ABCag100gˮУȫܽ⣬ֽ裬ҺȡBȷC. t3ʱȡABCֱҺµt1棬A