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1 Which of the following is not a laboratory safety rule? You should never mix acids with bases You should tie back your long hair You should never add water to acid You should never pour chemicals down the sink 2 Which piece of laboratory equipment can be used to store chemicals for a long period of time? Burrette Evaporating dish Beaker Pippette 3 Which of these is not a correct use of the bunsen burner? Turn off the gas valve after use When not using the bunsen burner for a while, open the air-hole Never leave the flame unattended Open the air hole slowly
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