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1、初三化学中考推断题集推断题训练 1、有失去标签的六瓶溶液:HCl、NaCO 、Ba(NO) 、NaSO 、NaNO.将其任意编号，进行两2332243两混合，其现象如下表: 实验 A+D A+B B+C A、B、C、D分别与E 现象 产生气体 产生沉淀 产生沉淀 无现象 (1)写出各物质的化学式: A、 ;B、 ;C、 ;D、 ;E、 。 (2)写出有关反应的化学方程式 A+D B+C 2、有A、B、C、D、E、F六种化合物，它们在溶液中可发生如下反应: (1)B+A?C+HO; (2)C+KOH?D?+E; (3)E+AgNO?F(白色)?+KNO 233E中加入Ba(NO)溶液，无明显现象
2、，则下列判断正确的是( ) 32A(B可能是碱性氧化物 B(D不一定是碱 C(F一定是氯化银 D(B与A的反应一定属于中和反应 3、有一包固体粉末，可由CaCO、NaSO、NaCO、CuSO、BaCl中的一种或几种组成，做实验3242342得以下结果: (1) 此固体粉末加到水中，得到白色沉淀，上层清夜为无色; (2) 滴入足量稀硝酸后白色沉淀有部分溶解。 从实验可判断，该粉末可能的三组组成: 第一组组成:_ 第二组组成:_ 第三组组成:_ 4、现有一白色固体混合物，可能由BaCl、KOH、KNO、MgCl、CuSO中的几种混合而成。为证2324明其组成，做如下实验: (1)取一定量该固体混合
3、物加入足量的水，充分搅拌，得到白色沉淀和无色液体。过滤得白色metal structure, which level power station pressure pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing annex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole
4、, water mouth work door and the stopped dirt gate the 1 hole, Qian pool work door and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containing sand Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical equ
5、ipment. Concrete pressure pipe, gate, trash and hoisting device project property list 1-11-3. Table 1-1 the main characteristics of the penstock number item parameter type controller size head a long pipe diameter pipe length 11 hydropower station penstock open-air exposed pipe, single pipe joint wa
6、ter supply 1.3M 931m 0.8M 8.3*2m 22 hydropower station penstock open-air exposed pipe, single pipe joint water supply 1.4m 1063.506 m 0.8M 10*2m table 1-2 hydropower station Main characteristics of hydraulic metal structure number project name gate, trash rack, door (gate . Pressure pipe and the met
7、al structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, co
8、mpetent diameter 1.3M, long 931.00m, two root non-symmetric Bu type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base sur
9、face into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on
10、the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric y pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town
11、pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth
12、0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure 沉淀?无色滤液?。则原混合物一定含有 ，一定不含有 。 (2)向无色滤液?中加入KOH溶液，无任何现象，再加入过量的某可溶性碳酸盐溶液，充分反应后过滤，得白色沉淀?，无色滤液?，则原混合物中一定还含有 。 (3)向无色滤液?中加入过量的盐酸，然后将所得的液体蒸干，得到固体A。如果固体A中只含有2种元素，原混合物中一定还不含有 ，则加入的碳酸盐溶液是 ;如果固体A中含有两种金属元素，则加入的碳酸盐溶液是 。 5、某溶液由NaCO、
13、NaSO 、HSO 、Cu(NO) 、KNO、NaCl六种溶液中的两种组成。对该溶232424323液进行如下实验，所观察到的现象记录在下表中。试根据各步实验及其现象先进行分步推断，再综合推断该溶液的可能组成。 实验操作步骤 实验现象 对溶液组成分步推断的结论 ?取溶液少许，观察 溶液无色、澄清 ?用pH试纸测定溶液的pH PH=2 ?向溶液中滴入过量的 有白色沉淀出现 Ba(OH)溶液 2?过滤，向滤液中滴加AgNO3无明显现象 溶液 溶液的可能组成(写出溶质的化学式，有几组要写几组) _。 6、某物质中可能有Cu(NO)、CaCO、Ba(NO)、NaSO 、KOH、NaNO中的一种或几种，
14、做如下32332243实验: (1)固体加入足量的水中，充分搅拌后，静置过滤，得白色沉淀和无色滤液; (2)在白色沉淀里加入浓盐酸，白色沉淀全溶放出气体; (3)把(1)的滤液分成两份，把?中产生的气体通入第一份滤液，无现象;再把导出的气体通入第二份的滤液中得到白色沉淀。 回答下列问题: metal structure, which level power station pressure pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing
15、annex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole, water mouth work door and the stopped dirt gate the 1 hole, Qian pool work door and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containin
16、g sand Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical equipment. Concrete pressure pipe, gate, trash and hoisting device project property list 1-11-3. Table 1-1 the main characteristics of the penstock number item parameter type controller si
17、ze head a long pipe diameter pipe length 11 hydropower station penstock open-air exposed pipe, single pipe joint water supply 1.3M 931m 0.8M 8.3*2m 22 hydropower station penstock open-air exposed pipe, single pipe joint water supply 1.4m 1063.506 m 0.8M 10*2m table 1-2 hydropower station Main charac
18、teristics of hydraulic metal structure number project name gate, trash rack, door (gate . Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour c
19、lose vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric Bu type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic sec
20、tion 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step l
21、adder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.50
22、6m, two asymmetric y pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tub
23、e, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure ?原固体一定含有 ; ?(2)中放出的气体有 和 ;在(3)步骤中通入第二份的滤液中的气体肯定有 ; ?在(3)中所得的白色沉淀是(用化学式表示) 。 7、有一瓶气体，它由H、CO、CO、CH中的一种或
24、几种组成，用它进行如图所示的实验: 224用化学式回答问题: (1) 气体中一定没有_ 。 (2) 气体的组成可能是(有几种填几种，可不填满) ?_ ?_ ?_ ?_ ?_ ?_ 8、已知常用的强酸(HSO 、HCl、 HNO)跟常用的强碱(NaOH、KOH)反应生成的盐的水溶液243显中性，现将某白色粉末溶入一无色中性液体中，按以下图示进行实验: 试按下列要求推断未知物: (1)用化学式写出:B ;C ;D ; (2)若A是纯净物，无色中性液体也是纯净物，则中性液体是(填化学式) ; (3)若A是纯净物，无色中性液体是只含一种溶质的溶液，则中性液体是(填化学式) metal structur
25、e, which level power station pressure pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing annex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole, water mouth work door and the stopped dirt
26、 gate the 1 hole, Qian pool work door and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containing sand Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical equipment. Concrete pressure pipe, gate, trash
27、and hoisting device project property list 1-11-3. Table 1-1 the main characteristics of the penstock number item parameter type controller size head a long pipe diameter pipe length 11 hydropower station penstock open-air exposed pipe, single pipe joint water supply 1.3M 931m 0.8M 8.3*2m 22 hydropow
28、er station penstock open-air exposed pipe, single pipe joint water supply 1.4m 1063.506 m 0.8M 10*2m table 1-2 hydropower station Main characteristics of hydraulic metal structure number project name gate, trash rack, door (gate . Pressure pipe and the metal structure installation 9.1 main engineeri
29、ng profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two roo
30、t non-symmetric Bu type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0
31、.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour
32、 lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric y pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity
33、, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main eng
34、ineering content this standard pressure 溶液或 溶液。 9、某固体可能是Cu(NO)、CaCO、Ba(NO)、NaSO 、KOH、NaNO以上物质中的一种或几种，32332243某同学为确定其成分设计了如下实验流程: 白色沉淀D 加足量 气体E(能使石灰水变浑浊) 稀硝酸 加入足白色沉淀A Ca(NO)溶液 32操作III 固 量的水 体 蓝色沉淀F 加适量C溶液 操作I 有色溶液B 纯净的硝酸钠溶液 操作II 回答下列问题: (1)操作I、II、III的名称是 。 (2)白色沉淀A有 ，蓝色沉淀F是 。 (3)原固体物质中肯定有 ，可能有 。 (4)若
35、加入的C溶液只含有一种溶质，则溶质是 ; 若加入的C溶液只含有两种溶质，则溶质是 。 10(现有KCO、HSO、HNO、BaCl、四种溶液，它们之间有如图所示的相互反应关系，图中每232432条线的两端的物质可以发生化学反应试推断: 写出下列反应方程式: ? + ?_ ? + ?_ metal structure, which level power station pressure pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing ann
36、ex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole, water mouth work door and the stopped dirt gate the 1 hole, Qian pool work door and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containing s
37、and Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical equipment. Concrete pressure pipe, gate, trash and hoisting device project property list 1-11-3. Table 1-1 the main characteristics of the penstock number item parameter type controller size
38、head a long pipe diameter pipe length 11 hydropower station penstock open-air exposed pipe, single pipe joint water supply 1.3M 931m 0.8M 8.3*2m 22 hydropower station penstock open-air exposed pipe, single pipe joint water supply 1.4m 1063.506 m 0.8M 10*2m table 1-2 hydropower station Main character
39、istics of hydraulic metal structure number project name gate, trash rack, door (gate . Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour clos
40、e vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric Bu type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic sectio
41、n 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladd
42、er on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m,
43、 two asymmetric y pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube,
44、compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure 11、有A、B、C、D、 B A F E、F六种物质，它们间的相互关系如右图所示 (连线表示能相互反应)。已知:D是一种金属单 质，它可能是锌或铜;A、B、C、E、F分别是: AgNO、Ca(OH) 、盐酸、
45、NaCO 、BaCl五种 32232C D E 溶液中的一种，其中A和C反应时生成一种无色 气体。 (1)它们的化学式分别是: A ;B ; C ;D ;E ;F 。 (2)写出有关反应的化学方程式: A+F: D+E: (3)写出F在水溶液中电离的电离方程式: 12、有Cu(NO)、NaCO、Ba(NO)、HSO 、KOH、HCl具有下列反应关系，试推断各字母分别32233224代表什么物质(其中，D和F的反应中蓝色沉淀产生), B A F C E D 写出A、B、C、D、E、F的化学式 metal structure, which level power station pressure
46、pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing annex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole, water mouth work door and the stopped dirt gate the 1 hole, Qian pool work door
47、and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containing sand Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical equipment. Concrete pressure pipe, gate, trash and hoisting device project property l
48、ist 1-11-3. Table 1-1 the main characteristics of the penstock number item parameter type controller size head a long pipe diameter pipe length 11 hydropower station penstock open-air exposed pipe, single pipe joint water supply 1.3M 931m 0.8M 8.3*2m 22 hydropower station penstock open-air exposed pipe, sing