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ARC-Challenge / Mercury_401014 / When a mixture of oxygen and hydrogen is ignited in a test tube, the reaction…

Problem

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

question

When a mixture of oxygen and hydrogen is ignited in a test tube, the reaction shown occurs. Hydrogen + Oxygen -> Water + Energy What happens to the total mass of the contents of the test tube?

choices

  • The total mass increases.
  • The total mass decreases.
  • The total mass remains the same.
  • Part of the mass is changed to heat energy.

Discussion

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Source and history

upstream_id / Original problem ID
Mercury_401014
task_id
fec8854d-373e-5095-b0eb-74e34e7cd7fb
task_key
ARC~2dChallenge--test--Mercury~5f401014
task_revision_id
1
config / split
ARC-Challenge / test

Official source

initial import