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Question
Give a balanced equation for the following conversion: [In one or two steps]
A metallic oxide to calcium carbonate.
Solution
A metallic oxide to calcium carbonate
Step I: \[\ce{\underset{\text{Cal.oxide}}{CaO} + H2O -> Ca[OH]2}\]
Step II: \[\ce{Ca[OH]2 + CO2 ->\underset{\text{[Cal. carbonate]}}{CaCO3} + H2O}\]
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