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1. $H^+$ (Chlorhydric acid) |
$CO_3^{2-}+2H^+$ $\longrightarrow$ $H_2O+CO_2$ - Carbone dioxide - Colorless, odorless gas - Makes lime water or barite water cloudy |
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2. $Ag^+$ (Silver nitrate) |
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$CO_3^{2-}$ $+$ $2Ag^+$ $\longrightarrow$ $Ag_2CO_3$ - White-yellow precipitate, - Unstable - Soluble in $HNO_3$ and $NH_3$ |
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2. $Ba^{2+}$ (Barium chloride) |
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$CO_3^{2-}$ $+$ $Ba^{2+}$ $\longrightarrow$ $BaCO_3$ - White precipitate, - Soluble in $HCl$ and $CH_3COOH$ |