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.
ScanSolve AI Answer
Here are the solutions to the questions: 1. Which of the following gases could be collected by downward displacement of air? Downward displacement of air is used to collect gases that are denser than air. The average molar mass of air is approximately 29 g/mol. A. Chlorine (Cl_2): Molar mass = 2 × 35.5 = 71 g/mol. Denser than air. B. Hydrogen (H_2): Molar mass = 2 × 1 = 2 g/mol. Less dense than air. C. Hydrogen chloride (HCl): Molar mass = $1 + 35.5 =