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aroub

  • 3 years ago

When heating a beaker or an evaporating dish, which of the following rules is/are fundamental? a) Make sure that the beaker or dish is at least half full with liquid. b) Use gloves to put the beaker or dish on the wire gauze and tripod before lighting the Bunsen burner. c) Use tongs and never your hands to transfer the hot evaporating dish to a steam bath.

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  1. akitav
    • 3 years ago
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    c)

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