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The EPA classifies waste by their reaction characteristics. Common acids and bases would fall under which of the following classifications: (a) ignitable (b) reactive (c) toxic (e) all of the above When using flammable solvents (a) it is OK to use an open flame in the vicinity as long as you are very careful (b) never use buners and other ignition sources in the vicinity (c) never use burners, because electric heaters are not going to ignite a fire (d) be very careful, but use whatever heater is available at that time (e) (b) and (c) Which of the following are recommended eye protection for chemistry laboratories? (a) goggles (b) safety glasses (c) prescription eyeglasses (d) contact lenses (e) all of the above When inserting a glass tube or rod into a stopper (a) lubricate the glass (b) hold the glass not more than two inches from the end to be inserted (c) push with a gentle twisting motion (d) use an inserter (e) all of the above A fume hood is to be used (a) for conducting reactions that may result in an explosion (b) for disposal of toxic liquids and gases (c) to control exposure to toxic liquids and gases (d) with the sash in a maximally open position to allow the greatest air flow (e) in well-ventilated laboratories