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Item SC059004: When a chemical reaction occurs in a sealed container, the mass of the materials in the container stays the same.

A chemical reaction is taking place in a sealed container. What will happen to the mass of the materials in this sealed container?

  1. The mass will increase.
  2. The mass will decrease.
  3. The mass will stay the same.
  4. It will depend on which chemical reaction occurs.
Distribution of Responses
Chart showing distrubtion of responses for Item SC059004
Students Responding Correctly
Group Correct Total Percent
Overall 1332 3646 37%
  6–8 746 2423 31%
  9–12 583 1215 48%
Primary Language

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