Two groups of students A and B planned to conduct an experiment to understand the effect of acid on marble and limestone
Gomersed a marble che sta mass of 3.0 grams in sulphuric acid overnight. The chip was removed from acid, dried up and weighed
beto
Groups the pretty created a mass of 3.0 grams in pure distilled water overnight As the chip was removed
Dass of both costhenext day of the experiment
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Answer:
Reaction involved-
CaCO3+2HCl→CaCl2+CO2+H2O
The evolved gas is carbon dioxide which when passes through lime water turns it milky.
Ca(OH)2+CO2→H2O+CaCO3
⇐ due to formation of this compounds
when excess CO2 is passed
CaCO3+H2O+CO2→Ca(HCO3)2
Bicarbonate is formed which again clears the solution.
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