1 . 依据事实书写化学方程式.其中正确的是( )
A.成语:水滴石穿:CaCO3+CO2+H2O=Ca(HCO3)2 |
B.电解水时,两极均产生气泡:2H2O ![]() |
C.军事上,照明弹发光的反应:4P+5O2 ![]() |
D.用石灰水刷墙,墙壁逐渐变白变硬:CO2+Ca(OH)2=CaCO3+H2O |
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2 . 氢气燃烧的化学方程式是( )
A.2H2+O2 ![]() | B.2H2+O2 ![]() |
C.2H+O ![]() | D.2H2+O2=2H2O |
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3 . 配平下列化学方程式.
(1)_____ Fe2O3+_____ CO![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334ab4c199317689b79323b494db6fcf.png)
_____ Fe+_____ CO2
(2)_____ CH4+_____ O2![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
_____ CO2+_____ H2O
(3)_____ Al+_____ O2![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
_____ Al2O3
(4)_____ Cu2(OH)2CO3![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3bc8165582ac1e24cb6c3f3d51966e.png)
_____ CuO+_____ H2O+_____ CO2↑
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334ab4c199317689b79323b494db6fcf.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3bc8165582ac1e24cb6c3f3d51966e.png)
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4 . 化学反应方程式书写正确的是
A.2H2O2![]() | B.CaCO3![]() |
C.H2SO4 + NaOH=NaSO4 + H2O | D.4P + 5O2![]() |
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5 . 下列各化学方程式中,书写正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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2019-09-18更新
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103次组卷
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2卷引用:沪教版九年级上册化学练习+4.3化学方程式的书写与运用
6 . 写出或配平下列反应的化学方程式:
(1)铁在氧气中燃烧:________ ;
(2)用过氧化氢与二氧化锰制氧气:________ ;
(3)一氧化碳还原氧化铜:________ ;
(4)________
________ O2![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79723828e9d0c4fea71a1e23daf44d3.png)
__________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3561c8856a266a5a2b22e7c3224116.png)
________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb44f04da15d0a1538f2969155b58ec.png)
(5)________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1a31922e27761eecd8f95e815cc854.png)
________ H2 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ec93a8137ed3c56696b9c0e84a1dd4.png)
________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c1a6b1b87e28ac13e96ae308375d085.png)
________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb44f04da15d0a1538f2969155b58ec.png)
(6)________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077c78e71405db3ecb744ee486f98a5c.png)
________ O2![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79723828e9d0c4fea71a1e23daf44d3.png)
________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1a31922e27761eecd8f95e815cc854.png)
________
.
(1)铁在氧气中燃烧:
(2)用过氧化氢与二氧化锰制氧气:
(3)一氧化碳还原氧化铜:
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/962d853ad5f0a3f6b66a152605caeb6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79723828e9d0c4fea71a1e23daf44d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3561c8856a266a5a2b22e7c3224116.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb44f04da15d0a1538f2969155b58ec.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1a31922e27761eecd8f95e815cc854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ec93a8137ed3c56696b9c0e84a1dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c1a6b1b87e28ac13e96ae308375d085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb44f04da15d0a1538f2969155b58ec.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077c78e71405db3ecb744ee486f98a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79723828e9d0c4fea71a1e23daf44d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1a31922e27761eecd8f95e815cc854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b0ac6b7a7b173d822b49067dcfa6458.png)
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7 . 配平下列方程式:
(1)________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d84b46e238f3fd29fb97eec82cf8dba.png)
________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d97275dafb713a09d9da6809c488e9c6.png)
________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3561c8856a266a5a2b22e7c3224116.png)
________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb44f04da15d0a1538f2969155b58ec.png)
(2)________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f15b250d9b683b659a609c261c5fd3.png)
________ O2![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79723828e9d0c4fea71a1e23daf44d3.png)
________ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1a31922e27761eecd8f95e815cc854.png)
________
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d84b46e238f3fd29fb97eec82cf8dba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d97275dafb713a09d9da6809c488e9c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3561c8856a266a5a2b22e7c3224116.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb44f04da15d0a1538f2969155b58ec.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f15b250d9b683b659a609c261c5fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79723828e9d0c4fea71a1e23daf44d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1a31922e27761eecd8f95e815cc854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b0ac6b7a7b173d822b49067dcfa6458.png)
您最近一年使用:0次
8 . 配平下列化学方程式:
(1)____ Fe3O4+____ CO![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334ab4c199317689b79323b494db6fcf.png)
____ Fe+____ CO2
(2)____ C2H4+____ O2![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
____ CO2+____ H2O
(3)____ MnO2+____ HCl![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3bc8165582ac1e24cb6c3f3d51966e.png)
____ MnCl2+____ Cl2↑+____ H2O
(4)____ CuSO4+____ NaOH=____ Cu(OH)2↓+____ Na2SO4
(5)____ N2H4+____ N2O4![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
____ N2+____ H2O
(6)____ H2+____ WO3![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334ab4c199317689b79323b494db6fcf.png)
____ W+____ H2O
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334ab4c199317689b79323b494db6fcf.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3bc8165582ac1e24cb6c3f3d51966e.png)
(4)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334ab4c199317689b79323b494db6fcf.png)
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9 . 配平下列化学方程式。
(1)____ CH4+____ O2![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
____ CO2+____ H2O
(2)____ C2H5OH+____ O2![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
____ CO2+____ H2O
(3)____ PH3+____ O2![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
____ P2O5+____ H2O
(4)____ KClO3![](https://staticzujuan.xkw.com/quesimg/Upload/formula/173af9bd7fa5bfc59b8456c98503e3f4.png)
____ KCl+____ O2
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c0e3406c3430dec588e4b9b9e8b996.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/173af9bd7fa5bfc59b8456c98503e3f4.png)
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10 . 某反应可表示为:mM+nHCl+O2=xMCl2+y H2O,则x的值为( )
A.2 ![]() | B.4 ![]() | C.6 ![]() | D.8 |
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