Question

Ba=BaO=BaCl2=Ba(OH)2

Answer 1

2Ba + O2 = 2BaO

BaO + 2HCl = BaCl2 + H2O

BaCl2 + 2NaOH = 2HCl + Ba(OH)2

Answer 2

The equation you provided seems to be incomplete or incorrect. It looks like you are trying to show different chemical species related to barium (Ba) and its compounds, but the equation lacks the proper chemical symbols and stoichiometry.

Here are the correct chemical formulas for the compounds you mentioned:

1. Ba - Barium (elemental form)
2. BaO - Barium oxide
3. BaCl2 - Barium chloride
4. Ba(OH)2 - Barium hydroxide

If you meant to compare these compounds in terms of their chemical properties or reactions, please provide more context or a specific question so I can assist you better.