sciencegeek1 sciencegeek1
  • 15-03-2015
  • Chemistry
contestada

Is a fireplace poker glowing red when placed into fire a chemical or physical change

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HistoryGuy HistoryGuy
  • 16-03-2015
A fireplace poker glowing red when placed into fire constitutes a physical change. All that is happening is that (usually) iron poker is being heated and emitting light. There is no change to the chemical properties.
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greyhoundbloke
greyhoundbloke greyhoundbloke
  • 16-03-2015
It is a physical change. The red glow is caused by radiation being emitted by the hot poker as it cools.
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