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ARC-Challenge / Mercury_7180810 / A teacher is conducting an investigation by using special equipment to hold a…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A teacher is conducting an investigation by using special equipment to hold a magnesium (Mg) ribbon over the flame of a Bunsen burner. Which observation indicates a chemical reaction took place?

choices

  • The temperature of the magnesium ribbon increased.
  • The shape of the magnesium ribbon changed.
  • The burning magnesium produced light.
  • The magnesium appeared to evaporate.

Discussion

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Source and history

upstream_id / Original problem ID
Mercury_7180810
task_id
ae18022e-23ea-5b00-bda2-e215c6c015d6
task_key
ARC~2dChallenge--test--Mercury~5f7180810
task_revision_id
1
config / split
ARC-Challenge / test

Official source

initial import