chero97 chero97
  • 24-01-2019
  • English
contestada

You are heating a substance in a test tube .always point the open end of the tube

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imsmartbutneedhelp78 imsmartbutneedhelp78
  • 24-01-2019
no yes maybe dont point it to your face wear glasses
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mmonteneg0007 mmonteneg0007
  • 11-07-2020

Answer:

id say point it upwards or check the instructions before starting the experiment

Explanation:

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