Question

1)___+ H2O = H3PO4

2)K +____=KOH + H2↑

3)C + H2O = CO + H2↑

4)H2 + ___ = NAOH

5)SO3 + ____ = H2SO4

 

Answer 1

1)P2O5+3H2O=2H3PO4
2) 2K+2H2O=2KOH+H2 ↑
3) C + H2O = CO + H2↑
4)H2O+Na=H2+NAOH
5)SO3 + H2O = H2SO4