Question

Answer 1

\(Ca+2H_2O\rightarrow Ca\left(OH\right)_2+H_2\)

\(K_2O+H_2O\rightarrow2KOH\)

\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)

\(P_2O_5+3H_2O\rightarrow2H_3PO_4\)

Answer 2

Ca + 2H2) -> Ca(OH)2 + H2

K2O + H2O -> 2KOH

2Al + 6HCl -> 2AlCl3 + 3H2

Answer 3

P2O5 + 3H2O -> 2H3PO4