2022年2022年中考化学总复习九年级化学全册知识点总结 .pdf
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1、1 高温点燃MnO2 常见的化学方程式1.实验室制取氧气11.将二氧化碳变为一氧化碳2H2O2 2H2O+O2 C+CO22CO2KMnO4 K2MnO4+MnO2+O2 12.将一氧化碳变为二氧化碳2KCLO3 2KCL+3O2 2CO+O22CO22.实验室制取二氧化碳 13.一氧化碳还原CaCO3+2HCL CaCL2+H2O+CO2CO+CuO Cu+CO2(不用稀硫酸原因:CaCO3与稀硫酸生成微溶于3CO+Fe2O32Fe+3CO2水的CaSO4阻碍反应继续)CO+FeO Fe+CO23.工业制二氧化碳4CO+Fe3O43Fe+4CO2CaCO3CaO+CO2 14.氢气在氧气中燃
2、烧4.生石灰制熟石灰2H2+O22H2OCaO+H2O Ca(OH)2 15.氢气还原氧化铜MnO2 高温点燃高温高温高温点燃2 高温5.澄清石灰水变浑浊H2+CuO Cu+H2OCa(OH)2+CO2 CaCO3 +H2O 16.电解水6.碳酸 不 稳 定2H2O 2H2+O2H2CO3H2O+CO2,H2O+CO2H2CO3 17.铝不易生锈原因7.木炭还原4AL+3O22AL2O3C+2CuO 2Cu+CO2 18.酸碱中和反应C+CO22CO HCL+NaOH NaCL+H2O3C+2Fe2O34Fe+3CO2 19.氢氧化钠变质(氢氧化钠吸收二氧化碳)8.木炭燃烧2NaOH+CO2N
3、a2CO3+H2OC+O2CO2 20.除杂 NaOH 中的 Na2CO32C+O22CO Na2CO3+Ca(OH)22NaOH+CaCO39.甲烷完全燃烧 21.实验室制取氢气CH4+2O2CO2+2H2O Zn+H2SO4ZnSO4+H2点燃点燃点燃通电高温高温文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q1
4、0I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q
5、10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6
6、Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N
7、6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2
8、N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ
9、2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 Z
10、J2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y13 点燃点燃点燃点燃10.乙醇完全燃烧(不用稀盐酸原因:盐酸具有挥发性,挥发出C2H5OH+3O22CO2+3H2O HCL气体使氢气不纯)常见的实验现象1.4P+5O22P2O5红磷燃烧:产生大量白烟,放热2.C+O2CO2木炭燃烧:空气中,持续红热,无烟无烟放热,生成能使澄清石灰水变浑浊气体。氧气中,剧烈燃烧,并发出白光3.S+O2SO2硫燃烧:空气中,发出淡蓝色火焰放热,生成有刺激性气味的气体。
11、氧气中,发出蓝紫色火焰4.4AL+3O22AL2O3铝燃烧:发出耀眼的白光,放热,生成白色固体4AL+3O22AL2O3铝在空气中被氧化,生成致密的氧化铝薄膜5.2H2+O22H2O纯净的氢气 在空气中燃烧,产生淡蓝色火焰,放热,生成水6.3Fe+2O2Fe3O4铁在氧气中点燃,剧烈燃烧,火星四射,放热并生成黑色固体7.2Mg+O22MgO 镁在空气中燃烧,发出耀眼的白光,放热,生成白色点燃点燃点燃点燃文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R
12、9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5
13、R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K
14、5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8
15、K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ
16、8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:C
17、Q8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:
18、CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y14 点燃粉末8.2Cu+O22CuO铜加热后,红色固体逐渐变成黑色9.2CO+O22CO2一氧化碳 点燃,产生蓝色火焰,放热,生成能使澄清石灰水变浑浊的气体10.CH4+2O2CO2+2H2O甲烷燃烧产生明亮的蓝色火焰,放热产生能使澄清石灰水变浑浊的气体,生成水。常
19、见物质的颜色固体液体红色:铜 Cu、氧化铁 Fe2O3、红磷 P 蓝色:含有 Cu2+的溶液黑色:铁粉 Fe、氧化铜 CuO、木炭 C、浅绿色:含有 Fe2+的溶液四氧化三铁 Fe3O4、氧化亚铁 FeO、二氧化锰 MnO2黄色:含有 Fe3+的溶液红褐色:氢氧化铁 Fe(OH)3蓝色固体:氢氧化铜 Cu(OH)2物质的鉴定1.氧气:带火星的小木条伸入集气瓶中,如果小木条复燃,证明是氧气。2.二氧化碳:将气体通入到澄清石灰水中,若澄清石灰水变浑浊,证明是二氧化碳。点燃文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L
20、1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4
21、L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ
22、4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 H
23、J4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2
24、HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2
25、 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R2 HJ4L1A10K8V5 ZJ2N6Q10I10Y1文档编码:CQ8K5R9E6R
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