Answered

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what action is not necessary before lighting a bunsen burner?

Sagot :

firered21

Answer:

Even though you didn't include any option choices in your question, I've searched it up anyways, and every source I found says that the answer is "Leave the gas stop open for a few minutes before lighting to clear the line."

Explanation:

Hope this is what you were looking for :)

If not, then I'm sorry.

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