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31/10/2020 5:52 pm
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Explain the action of dilute hydrochloric acid on the following with chemical equation:
(i) Magnesium ribbon
(ii) Sodium hydroxide
(iii) Crushed egg shells
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31/10/2020 6:18 pm
(i) Hydrogen gas will be formed
Mg(s) + 2HCl(dil) → MgCl2(aq)+ H2(s)
(ii) Sodium chloride and water will be formed
NaOH + HCl → NaCl + H2O
(iii) Crushed egg shell are made up of CaCO3 which reacts with dil HCl to give brisk effervescence due to CO2
CaCO3(s) + 2HCl → CaCl2 + H2O + CO2