balance the equation

Question

4. ____NaOH(aq) + ____FeCl3(aq) ------> ____Fe(OH)3(s) + ____NaCl(aq)

5. ____Mg(ClO3)2(s) --------> ____MgCl2(s) + ____O2(g)

6. ____Na(s) + ____O2(g) ---------->____Na2O(s)

7. ____Rb(s) + ____HNO3(aq) -------->____RbNO3(aq) + ____H2(g)

Answer 1

4. __3__NaOH(aq) + ___1_FeCl3(aq) ------> __1__Fe(OH)3(s) + __3__NaCl(aq)

5. __1__Mg(ClO3)2(s) --------> __1__MgCl2(s) + ___3_O2(g)

6. ___4_Na(s) + ____O2(g) ---------->__2__Na2O(s)

7. __2__Rb(s) + __2__HNO3(aq) -------->___2_RbNO3(aq) + __1__H2(g)