Question

Lập phương trình hóa học

1. Na + O2 --- > Na2O

2. Al + S --- > Al2S3

3. Fe(OH)3 + HCl --- > FeCl3 + H2O

4. Fe2O3 + H2SO4 --- > Fe2(SO4)3 + H2O

5 . NaOH + Cu(NO3)2 --- > NaNO3 + Cu(OH)2

6 . P + O2 --- > P2O5

giúp mình với

Answer 1

1. 4Na + O2 --- > 2Na2O

2. 2 Al + 3S --- > Al2S3

3. 2Fe(OH)3 + 6HCl --- > 2FeCl3 + 6H2O

4. Fe2O3 + 3H2SO4 --- > Fe2(SO4)3 + 3H2O

5 . 2NaOH + Cu(NO3)2 --- > 2NaNO3 + Cu(OH)2

6 . 4P + 5O2 --- > 2P2O5

Answer 2

1. 4Na + O2 --- > 2Na2O

2. 2Al + 3S --- > Al2S3

3. Fe(OH)3 + 3HCl --- > FeCl3 + 3H2O

4. Fe2O3 + 3H2SO4 --- > Fe2(SO4)3 + 3H2O

5 . 2NaOH + Cu(NO3)2 --- > 2NaNO3 + Cu(OH)2

6 . 4P + 5O2 --- > 2P2O5

Answer 3

\(1,4Na+O_2\underrightarrow{t^o}2Na_2O\\ 2,2Al+3S\rightarrow Al_2S_3\\ 3,Fe\left(OH\right)_3+3HCl\rightarrow FeCl_3+3H_2O\)

\(4,Fe_2O_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+3H_2O\)

\(5,2NaOH+Cu\left(NO_3\right)_2\rightarrow2NaNO_3+Cu\left(OH\right)_2\)

\(6,4P+5O_2\underrightarrow{t^o}2P_2O_5\)