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Acids, bases and salt
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04/09/2021 10:13 am
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A metallic compound A’ reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.
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04/09/2021 10:13 am
The gas evolved with effervescence and extinguishes a lit candle is CO2. If one of the compounds formed is CaCl2, the reaction would be
CaCO3(s) + HCl(aq) ➝ CaCl2(aq) + CO2 + H2O(l)