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ARC-Challenge / Mercury_7223493 / A scientist placed a sample of lithium into a container of water. The scientist…

Problem

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

question

A scientist placed a sample of lithium into a container of water. The scientist observed the lithium floating and making a buzzing sound as gas bubbles were forming around it. Which conclusion is best supported by this observation?

choices

  • A chemical change took place.
  • The lithium was dissolved by the water.
  • Dissolved gases were released.
  • Water was vaporized.

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Source and history

Official source

initial import