Balancing chemical equations

Is this chemical equation balanced?

The above chemical equation took me quite a while to balance. 🙂

Balancing of equations is crucial because it will affect the calculations of mole, mass of reactants and volume of gas which is another chapter altogether.

Attention all hannahtuition Science students, please balance the following chemical equations after receiving my mobile msg.  You may either write on piece of paper OR copy and paste these equations with your answers on the comment below.

Have Fun! 🙂

1)      __SeCl6  + __O2     —->    ___SeO2  + __Cl2

2)      __(NH4)3PO4  + __Pb(NO3)4       —>                   __Pb3(PO4)4  + __NH4NO3

3)      __KOH + __H3PO4         —>                 __K3PO4  + __H2O

4)      __H3PO4   + ___HCl           —>           __PCl5  + __H2O

5)      __Ca3(PO4)2   + ___H2SO4         —>              __CaSO4  + __Ca(H2PO4)2

6)     ___H2SO + __MgCO3 —>              __MgSO4 + __CO2  + __H2O

7)      __NH4NO3           —>               __N2  + __O2  + __H2O

8)      __ V2O5   + ___HCl   —>                    __VOCl3  + __H2O

9)      __As   + ___NaOH     —>               __Na3AsO3  + __H2

10)      __(NH4)2CO3      —>                   __NH3  + __CO2  + __H2O

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