`1)` $\text{4P + 5O$_2$}$ `->` $\text{2P$_2$O$_5$}$

`2)` $\text{P$_2$O$_5$}$ `+` $\text{3H$_2$O}$ `->` $\text{2H$_3$PO$_4$}$

`3)` $\text{2Fe(OH)$_3$}$ `->` $\text{Fe$_2$O$_3$}$ `+` $\text{3H$_2$O}$

`4)` $\text{Al$_2$O$_3$}$ `+` $\text{6HCl}$ `->` $\text{2AlCl$_3$}$ `+` $\text{3H$_2$O}$

`5)` $\text{3NaOH}$ `+` $\text{AlCl$_3$}$ `->` $\text{Al(OH)$_3$}$ `+` $\text{3NaCl}$

`6)` $\text{6KOH}$ `+` $\text{Fe$_2$(SO$_4$)$_3$}$ `->`$\text{Fe$_2$(OH)$_3$}$ `+` $\text{3K$_2$SO$_4$}$

`7)` $\text{2C$_2$H$_2$}$ `+` $\text{5O$_2$}$ `->` $\text{4CO$_2$}$ `+` $\text{2H$_2$O}$

`8)` $\text{9Fe$_2$O$_3$}$ `+` $\text{2Al}$ `->` $\text{6Fe$_3$O$_4$}$ `+` $\text{Al$_2$O$_3$}$

`9)` $\text{2CxHy + (4x + y)O$_2$}$ `->` $\text{2xCO$_2$}$ `+`$\text{yH$_2$O}$

`10)` $\text{Fe$_2$O$_3$}$ `+` $\text{3H$_2$}$ `->` $\text{2Fe}$ `+` $\text{3H$_2$O}$

#Ling

Đáp án:

Giải thích các bước giải:

 4P+5O2=>2P2O5

P2O5+3H2O=>2H3PO4

2Fe(OH)3=>Fe2O3+3H2O

Al2O3+6HCl=>2AlCl3+3H2O

3NaOH+AlCl3=>Al(OH)3+3NaCl

6KOH+Fe2(SO4)3=>F2e(OH)3+3K2SO4

2C2H2+5O2=>4CO2+2H2O

9Fe2O3+2Al=>6Fe3O4+Al2O3

2CxHy+(4X+Y)O2=>2XCO2+YH2O

Fe2O3+3H2=>2Fe+3H2O