© 1999 Division of Chemical Education, Inc.,American Chemical Society. | Chemistry Comes Alive! (entry page) | Table of Contents | Matrix of Chapters and Topics | Index| Alphabetical List of Topics | Chemistry Textbooks | Explain why the color of the flame changes.Base your explanation on the theory of spectra of atoms and molecules. When the natural gas flame is lowered from air into the container of chlorine, the color of the flame changes. Is the reaction shown exothermic or endothermic? Cite observations that justify your choice.Ĥ. (The reaction may fall within more than one of these categories.)ģ. Brake fluid (polyethylene glycol) and granular swimming pool chlorine (calcium hypochlorite) react violently when mixed together, producing a fierce. Classify the reaction shown in the video as combination, decomposition, exchange, acid-base, or redox. What observable evidence indicates that a chemical reaction has taken place?Ģ. The product is aluminum chloride, a white powder that fumes in air, reacting with water to form HCl gas and aluminum oxide.ĭemonstration Notes, Warnings, Safety Information, etc.ġ.

The aluminum reacts vigorously with the chlorine.Īluminum and chlorine do not react rapidly at room temperature, but if the aluminum is heated, the reaction is vigorous. and placed in a flask containing chlorine gas. The aluminum reacts vigorously with the chlorine to form a cloud of aluminum chloride. These are non-flammable solvents that are extremely fast-drying and provide the best cleaning for brake parts. tetrachloroethylene) and methylene chloride. Play movie(QuickTime 3.0 Sorenson, duration 31 seconds, size 2.1 MB)Īluminum foil is heated and placed in a flask containing chlorine gas. Berryman Chlorinated Brake Parts Cleaner is made of the chlorinated solvents perchloro-ethylene (a.k.a.

The product is white aluminum chloride, which solidifies and settles to the bottom of the flask.Īluminum, combination reaction, descriptive chemistry, enthalpy/heat, evidence of chemical reaction, exothermic process, halogens/halides/hydrohalic acids, redox reaction Reaction of Chlorine with Aluminum Reaction of Chlorine with AluminumĪluminum foil heated to glowing red reacts vigorously with chlorine gas in a flask.

Brake fluid chlorine and aluminum