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na2co3 ca no3 2
ba no3 2 + na2co3
na2co3 + ba oh 2
na2co3 ba hco3 2
ba no3 2 + na2so4 + nac2h3o2
ba no3 2 + na2so4
ba alo2 2 + na2co3
na2co3 + pb no3 2
ba no3 2 + nahco3
k2co3 + ba no3 2
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