请写出化学反应方程式(1)铁与稀盐酸____________________________________________.(2)铝与稀硫酸____________________________________________.(3)镁与稀盐酸____________________________________________.(4)锌与稀硫酸____________________________________________.

问题描述:

请写出化学反应方程式
(1)铁与稀盐酸____________________________________________.
(2)铝与稀硫酸____________________________________________.
(3)镁与稀盐酸____________________________________________.
(4)锌与稀硫酸____________________________________________.

铁和稀盐酸Fe + 2HCl === FeCl2 + H2↑
铝和稀硫酸2Al +3H2SO4 = Al2(SO4)3 +3H2↑
镁和稀盐酸Mg+ 2HCl === MgCl2 + H2↑
锌和稀硫酸Zn + H2SO4 = ZnSO4 + H2↑