Original Project
Substances, Chemical Reactions, and Conservation of Matter
Item SC073002: Some chemical reactions can be reversed.
Which of the following statements about chemical reactions is TRUE?
- All chemical reactions are dangerous.
- Some chemical reactions can be reversed.
- Chemical reactions occur only in a laboratory.
- Chemical reactions require starting with at least two substances.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 521 | 2751 | 19% |
| Grades | |||
| 6–8 | 258 | 1638 | 16% |
| 9–12 | 261 | 1093 | 24% |
| Gender | |||
| Male | 266 | 1266 | 21% |
| Female | 242 | 1428 | 17% |
| Primary Language | |||
| English | 458 | 2432 | 19% |
| Other | 46 | 243 | 19% |
- Notes
- NGSS does not address the question of whether chemical reactions may be reversible.