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ba oh 2 nh4 2so4
nh4 2so4 + ba oh 2
cho dung dịch nh4 2so4 vào dung dịch ba oh 2
ba oh 2 + nh4 2co3
ba oh 2 nh4hco3
ba oh 2 + na2so4
ba oh 2 + nh4no3
nh4hso4+ba oh 2
ba oh 2 + h2so4
ba oh 2 + nh4cl
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