Question

Lập PTHH:

VD: Cân bằng các phản ứng hóa học sau:

a. Fe + O₂ ----->   Fe₃O₄.                          b. NaOH + AlCl₃--->Al(OH)₃ + NaCl

c. K + H₂O ---> KOH + H₂                      d. KMnO₄ ---> K₂MnO₄ + MnO₂ + O₂

e. C_nH_2n  +  O₂--->   CO₂ + H₂O              g. FeCl_x + Ba(OH)₂ ---> BaCl₂ +  Fe(OH)_x

Answer 1

\(a.3Fe+2O_2\overset{t^o}{--->}Fe_3O_4\)

\(b.3NaOH+AlCl_3--->3NaCl+Al\left(OH\right)_3\downarrow\)

\(c.2K+2H_2O--->2KOH+H_2\uparrow\)

\(d.2KMnO_4\overset{t^o}{--->}K_2MnO_4+MnO_2+O_2\uparrow\)

\(e.2C_nH_{2n}+3nO_2\overset{t^o}{--->}2nCO_2\uparrow+2nH_2O\)

\(g.2FeCl_x+xBa\left(OH\right)_2--->xBaCl_2+2Fe\left(OH\right)_x\downarrow\)

Answer 2