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Question
State your observations when zinc carbonate is heated strongly.
Chemical Equations/Structures
Short Answer
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Solution
On strong heating, the light amorphous white solid changes to pale yellow.
\[\ce{ZnCO3 ->[\Delta] ZnO + CO2}\]
Lime water acquires a milky appearance due to the release of a colourless, odourless gas. When too much gas passes, the milkiness goes away. The gas that evolved is carbon dioxide.
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