Question

Hoàn thành CTHH sau:

Hộ em với ạ.

Answer 1

\(\left(19\right)Ca\left(OH\right)_2+Na_2CO_3\rightarrow CaCO_3+2NaOH\\ \left(20\right)Mg+2HCl\rightarrow MgCl_2+H_2\\ \left(21\right)Fe+H_2SO_4\rightarrow FeSO_4+H_2\\ \left(22\right)2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+6H_2O\\\left(23\right)Al\left(OH\right)_3 +3HCl\rightarrow AlCl_3+3H_2O\\ \left(24\right)2KMnO_4\rightarrow K_2MnO_4+MnO_2+O_2\)