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circle any (physical properties) and underline any chemical properties in the statement below. "Chlorine is a greenish-yellow gas that readily dissolves in water and upon reaction forms hypochlorous acid. Chlorine gas is toxic to humans. Chlorine combines violently with sodium metal to form sodium chloride, common table salt. Sodium chloride is a white solid that melts at 800C. " 2. Outline the proper procedure for smelling a chemical in the laboratory. You may need to refer back to the Safety Video for the proper technique.) 3. List 3 ways that you can tell that a gas is being produced. 4. We are going to be preparing the 5 gases whose formulas are listed below. For each gas, use the Intemet, your textbook, or other class resources to (a) name the gas, (b) give ene physical property of the gas: (c) give one chemical property of the gas. An example is shown for CH4 gas (which we will not be making). Several properties are shown in the example, you only need to provide one physical and one chemical property for each gas. Example: CHi Name: methane Examples of plysical properties: has a boiling point of 259 F. colorless, odorless, less dense than air Examples of chemical properties: reacts with halogens, not teric, exiremely flammable A. NO2w Name: Physical property: Chemical property: B. CO2 Name: Physical property: Chemical property: C. NH3 Name: Physical property: Chemical property: D. O2 Name: Physical property: Chemical property: E. H2 Name: Physical property: Chemical property: 50