This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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You're on a roll — here are the chemical tests to identify the given gases: 1) Identification of Carbon Dioxide (CO_2) Step 1: Pass the gas through limewater (calcium hydroxide solution). Step 2: Observe the change. Carbon dioxide turns limewater milky due to the formation of insoluble calcium carbonate. Ca(OH)_2(aq) + CO_2(g) → CaCO_3(s) + H_2O(l) 2) Identification of Ammonia (NH_3) Step 1: Bring a glass rod dipped in concentrated hydrochloric acid (HCl) near the gas. Step 2: Observe the change. Ammonia reacts with hydrogen chloride gas (from the concentrated HCl) to form dense white fumes of ammonium chloride. NH_3(g) + HCl(g) → NH_4Cl(s) 3) Identification of Hydrogen Sulfide (H_2S) Step 1: Pass the gas through lead(II) acetate paper (or solution). Step 2: Observe the change. Hydrogen sulfide turns lead(II) acetate paper black due to the formation of lead(II) sulfide. Pb(CH_3COO)_2(aq) + H_2S(g) → PbS(s) + 2CH_3COOH(aq) What's next?