how oxygen gas and carbon dioxide gas can be generated in the school laboratory.
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Carbon dioxide is produced whenever an acid. reacts with a carbonate. This makes carbon dioxide easy to make in the laboratory. Calcium ...
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Oxygen is prepared in the laboratory by heating potassium chlorate in presence of manganese dioxide (MnO2) as a catalyst at 623 K.
2KClO3−→−−MnO2 2KCl+3O2.
calcium carbonate + hydrochloric acid → calcium chloride + water + carbon dioxide
CaCO3(s) + 2HCl(aq) → CaCl2(aq) + CO2(g) + H2O(l)..
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