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Gas has to be above a certain temperature before it burns.
The diagram shows two similar wire gauzes, one made of iron wire and one made of copper wire.
Each is held over a Bunsen burner. When the gas supply is turned on and ignited below the gauze.
How can these observ tions be explained?
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Gas has to be above a certain temperature before it burns.
The diagram shows two similar wire gauze...
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