Item SC073002: Some chemical reactions can be reversed.

Which of the following statements about chemical reactions is TRUE?

  1. All chemical reactions are dangerous.
  2. Some chemical reactions can be reversed.
  3. Chemical reactions occur only in a laboratory.
  4. Chemical reactions require starting with at least two substances.
Distribution of Responses
Chart showing distrubtion of responses for Item SC073002
Students Responding Correctly
Group Correct Total Percent
Overall 521 2751 19%
Grades
  6–8 258 1638 16%
  9–12 261 1093 24%
Gender
  Male266126621%
  Female242142817%
Primary Language
  English458243219%
  Other4624319%

View data table

Notes
NGSS does not address the question of whether chemical reactions may be reversible.