Images SO2 SO3 H2SO4 BASO4

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So2 so3 h2so4 baso4. ОВР ba+h2so4=baso4+h2s+h2o. Ba Oh 2 baso4 h2o.
ОВР ba+h2so4=baso4+h2s+h2o. Ba Oh 2 baso4 h2o.

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