Ba→BaO→BaCl2→Ba(NO3)2→Ba(OH)2

Question

Ba→BaO→BaCl2→Ba(NO3)2→Ba(OH)2

Answer 1

2Ba+O2->2Ba0
BaO+2HCl->BaCl2+H20
BaCl2+2HNO3->Ba (NO3)2+2HCl
Ba (NO3)2+2H2O->Ba (OH)2+2HNO3

Answer 2

1) 2Ba+O2=2BaO
2) BaO+2HCl=BaCl2+H2O
3) BaCl2+2AgNO3=Ba(NO3)2+2AgCl
4) Ba(NO3)2+H20 = Ba(OH)2+HNO3