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26.02.2021 •
Chemistry
When you place the test tube containing the metal sample into the boiling water, why do you need to leave there for 10 minutes before proceeding?
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Ответ:
vacuum
Explanation: light travels as a wave but unlike sound waves or water it doesn’t need any matter to carry it energy along. This means that light can travel through a vacuum which means a completely airless space the wall is vacuum:) hope this helps