A mixture of sodium oxide (Na_2O) and calcium | vedclass

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(C) $1$. When $Na_2O$ and $CaO$ are dissolved in water, they form their respective hydroxides: $Na_2O + H_2O \rightarrow 2NaOH$ and $CaO + H_2O \right

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acidic; $NaHCO_3$ and $Ca(HCO_3)_2$

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(C) $1$. When $Na_2O$ and $CaO$ are dissolved in water, they form their respective hydroxides: $Na_2O + H_2O \rightarrow 2NaOH$ and $CaO + H_2O \rightarrow Ca(OH)_2$. $2$. When this solution is saturated with excess $CO_2$, the hydroxides react to form bicarbonates: $NaOH + CO_2 \rightarrow NaHCO_3$ and $Ca(OH)_2 + 2CO_2 \rightarrow Ca(HCO_3)_2$. $3$. Both $NaHCO_3$ and $Ca(HCO_3)_2$ are soluble in water. $4$. The resulting solution contains these bicarbonates, which make the solution slightly acidic due to the presence of excess dissolved $CO_2$ (forming carbonic acid) and the nature of the bicarbonate salts.

$A$ mixture of sodium oxide $(Na_2O)$ and calcium oxide $(CaO)$ is dissolved in water and saturated with excess carbon dioxide $(CO_2)$ gas. The resulting solution is $......$ It contains $.........$ :

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