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ca hco3 2 na2co3
na2co3 + ca hco3 2
ca hco3 2 ra na2co3
ca hco3 2 + naoh
na2co3 + ca oh 2
ca hco3 2 + nacl
ca hco3 2 + hno3
nahco3 + ca hco3 2
ca hco3 2 caco3
ca no3 2 + na2co3
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