Question

Answer 1

a.\(Fe_2O_3+6HCl\rightarrow2FeCl_2+3H_2O\)

b.\(Na_2O+H_2O\rightarrow2NaOH\)

c.\(CO_2+Ca\left(OH\right)_2\rightarrow CaCO_3+H_2O\)

d.\(Al_2O_3+6HNO_3\rightarrow2Al\left(NO_3\right)_3+3H_2O\)

e.\(3FeO+2H_3PO_4\rightarrow Fe_3\left(PO_4\right)_2+3H_2O\)

g.\(3Cu\left(NO_3\right)_2+2Al\rightarrow2Al\left(NO_3\right)_3+3Cu\)

Answer 2

Fe2O3 + 6HCl -> 2FeCl3 +3 H2O

Na2O + H2O -> 2NaOH + H2

CO2 + Ca(OH)2 -> CaCO3 + H2O

Al2O3 + 6HNO3 -> 2Al(NO3)3 + 3H2O

3FeO + 2H3PO4 -> Fe3(PO4)2 + 3H2O

3Cu(NO3)2 + 2Al -> 2Al(NO3)3 + 3Cu

Answer 3

\(a/ Fe2O3+6HCl\to 2FeCl3+3H2O\\ b/ Na2O+H2O \to 2NaOH+H2\\ c/ CO2+Ca(OH)2 \to CaCO3+H2O\\ d/ Al2O3+6HNO3 \to 2Al(NO3)3+3H2O\\ e/ 3FeO + 2H3PO4 \to Fe3(PO4)2+3H2O\\ g/ 3Cu(NO3)2 + 2Al \to 2Al(NO3)3 + 3Cu\\\)