Write the reaction equation: Ba- BaO- Ba (OH) 2-BaSO4

1) 2Ba + O2 = 2BaO – barium is oxidized by oxygen to form barium oxide;
2) BaO + H2O = Ba (OH) 2 – barium oxide reacts with water to form a barium base;
3) Ba (OH) 2 + Na2SO4 = BaSO4 + 2NaOH – barium hydroxide reacts with sodium sulfate salt to form a new barium sulfate salt and sodium hydroxide.



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