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

Percent of students responding correctly

Grades 6–831%
Grades 9–1248%
Primary Language is English36%
Primary Language is not English35%

View data table