A cotton swab is dipped into concentrated hydrochloric acid (producing hydrogen chloride gas) while a second on is dipped into concentrated aqueous ammonia (producing ammonia gas). Both cotton swabs ...
Mg(s) + 2HCl(aq) → MgCl 2 (aq) + H 2 (g) To Conduct Demonstration Lift the balloons one at a time so that the Mg falls into the HCl in each flask. Swirl to speed up reaction. Make sure all the Mg is ...
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