2021年江蘇中考化學(xué)復(fù)習(xí)專練(常州專版)-分子、原子、元素

222021年蘇中考化復(fù)習(xí)專練（州專版（）——分子、子、元素一選題共15?。?CDABCCA1DD14272AC

BD3ABC13D324A

22422224222BCO+H

一定條件ˉ

CHO+HOCD5AB31C1556D6

ABCDCO7A

B

C

D

60608?60ABCD9A

B

C

D10A

B

C

DA

B

C

D12ABC28.1gD13AC

BD14

AB34C45D15A83BC57D140.0g二填題共小題16123171Si

2221812ABC319ClO1ClO2SO22222N2CO220

3321123422a三計(jì)題共小題23PH96.5%1

222223CO2CHOHa.b.c.d.496tt四解題共小題24+

C

H

2

12325?H2H2A有機(jī)原圖回列

2212

34B26Y12

34X52nXZ27123C28

43424434241D2

43.5%3ANHHCO

BNHClCK291

23301

442320A

B

4311A

B

C2

34CH

ˉ32ˉ262ˉ32ˉ26222ˉ2021年蘇中考化復(fù)習(xí)專練（州專版（）——分子、子、元素參考答案與試題解析一選題共15?。?+3O22N+6HA.B.CC.NHD.D28227

23H4COAABBC12CD2D42+3H2CH2O

224226ˉˉ2224226ˉˉ2224222A124ABCO

ˉ

CHO+HOBCCD5C2C2+7O26H2AB64C122+16[716]6022415D6解2COCHOABBCCDCO261378BCCC

D9BCD10BCDABCD12AABBC28.1CDD13

33BCD14B3434C343434D115A57140+57BC57577D1二填題共小題16CHOH2量知充分

ˉ3222ˉ42ˉˉˉ3222ˉ42ˉˉˉ32CHOH+2O2CO3OH3OH+2O2CO2O17SiSiOSiCl

ˉ

Si+4HCl+422SiCl+2H218232ABC323112311

2ˉ2222ˉ2221922x+4SO16×232+16×2

100%+450%2HClO氰HCN一條下應(yīng)方程是一定條件2ClO+2HCN2CO2287227202221234123422abcd

22322232ebcae三計(jì)題共?。?32PH13131332HCH催化劑CO+3H

ˉ

CHOH+HOa.ab.bc.cd.496t36t233133ad436

36t四解題共?。?4HO

H2點(diǎn)燃3C+O2CO

4ˉ224ˉ222ˉ2點(diǎn)燃C+O2CO25AC2中COCO+H4666121H23CO+HCO+H2O41226XY+Z21112345X212n22n2n22345

44222ˉ32222344222ˉ322223222227ACH2CH+2O

ˉ

2HO+CO2423928BDNH+CONH+HO1NH3+3D2O222

43.5%

43.5%2×1412+16+(14+2)×2

93.2%3ACACHO292反