. A substance X is used to apply on walls. It reacts with gas Y present in air and converts into calcium carbonate on wall, after few hours. Gas Y is used by the plants for photosynthesis. a. Identify the gas Y and substance X. b. Write the chemical equation involved. c. In which three forms, CaCO3 exists in nature.
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Answer:
a) y is CO2
x is CaO
b) CaCO3= CaO+CO2
c) calcite, aragonite and vaterite.
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