Write a balanced equation to show why a carbonate decomposes to produce a gas, which turns lime- water milky
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Answer:
CaCO3 ----> CaO + CO2
Explanation:
In above chemical reaction, CaCO3 is the carbonate which when decomposed forms CaO ( calcium oxide) and CO2 ( carbon dioxide).
CaO is lime.
We can also observe this reaction, if we blow air(CO2) into a glass of lime water(CaO), after sometime, the solution turns milky white, forming the white precipitate of calcium carbonate.
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