好吧问答库 > 铜与稀硫酸、浓硫酸、稀硝酸、浓硝酸的化学反应方程式是什么

铜与稀硫酸、浓硫酸、稀硝酸、浓硝酸的化学反应方程式是什么

2025年03月14日 20:02
有3个网友回答
网友（1）：

稀硫酸 不反应
浓硫酸Cu+2H2SO4=CuSO4+2H2O+SO2
稀硝酸3Cu+8HNO3=3Cu(NO3)2+4H2O+2NO（高温就与浓硝酸一样）
浓硝酸Cu+4HNO3=Cu(NO3)2+2H2O+2NO2

网友（2）：

当硝酸为浓硝酸时，硝酸被还原成二氧化氮
cu
+
4
hno3
=
cu(no3)2
+
2
no2↑
+
2
h2o
cu
+
4
h+
+
2
no3-
=
cu2+
+
2
no2↑
+
2
h2o
硝酸为稀硝酸时，硝酸被还原成一氧化氮
3
cu
+
8
hno3
=
3
cu(no3)2
+
2
no↑
+
4
h2o
3
cu
+
8
h+
+2
no3-
=
3
cu2+
+
2
no↑
+
4
h2o

网友（3）：

过量和少量没差别。
和稀硫酸在通入空气并加热时反应生成硫酸铜
2Cu+2H2SO4+O2→2CuSO4+2H2O

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