Ba -> BaO -> BaCo3 -> BaCl2 -> BaSiO3 -> BaO

Question

Ba -> BaO -> BaCo3 -> BaCl2 -> BaSiO3 -> BaO

Answer 1

1. 2Ba + O2 = 2BaO
2. BaO + H2CO3 = BaCO3 + H2
3, BaCO3 + 2HCl = BaCl2 + H2O + CO2
4. H2SiO3 + BaCl2 = 2HCl + BaSiO3
5. BaSiO3 =(t)= BaO SiO2