Question

hoàn thành phương trình hóa học sau :

A . C2H2 + O2 -----> CO2 + H2O

B . Ba(OH)2 + Fe2(SO4)3 -----> BaSO4 + Fe(OH)3

C . Cu + HNO3 -----> Cu(NO3)2 + NO +H2O

Answer 1

\(B.Ba\left(OH\right)_2+Fe_2\left(SO_4\right)_3=2Fe\left(OH\right)_3+3BaSO_4\)

\(A.2C_2H_2+5O_2\rightarrow2H_2O\uparrow+4CO_2\uparrow\)

\(C.3Cu+8HNO_3\rightarrow3Cu\left(NO_3\right)_2+4H_2O+2NO\)

Answer 2

A . 2C₂H₂ +5 O₂ -----> 4CO₂ + 2H₂O

B . 3Ba(OH)2 + Fe2(SO4)3 -----> 3BaSO4 + 2Fe(OH)3

C . 3Cu + 8HNO3 -----> 3Cu(NO3)2 +2NO +4H2O

Answer 3

a) \(2C_2H_2+5O_2→4CO_2+2H_2O\)

b) \(3Ba\left(OH\right)_2+Fe_2\left(SO_4\right)_3→3BaSO_4+2Fe\left(OH\right)_3\)

c) \(Cu+4HNO_3→Cu\left(NO_3\right)_2+4NO+2H_2O\)

Answer 4

a. C₂H₂ + \(\dfrac{5}{2}\)O₂ ➝ 2CO₂ + H₂O
b. 3Ba(OH)₂ + Fe₂(SO₄)₃ ➝ 3BaSO₄ + 2Fe(OH)₃
c. Cu + 4HNO₃ ➝ Cu(NO₃)₂ + 4NO + 2H₂O