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.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 2751 |
6–8 n = 1638 |
9–12 n = 1093 |
Male n = 1266 |
Female n = 1428 |
English n = 2432 |
Other n = 243 |
||
| A. | All chemical reactions are dangerous. | 11% | 11% | 11% | 12% | 10% | 10% | 17% |
| B. | Some chemical reactions can be reversed. | 19% | 16% | 24% | 21% | 17% | 19% | 19% |
| C. | Chemical reactions occur only in a laboratory. | 7% | 8% | 7% | 8% | 7% | 8% | 6% |
| D. | Chemical reactions require starting with at least two substances. | 63% | 66% | 58% | 59% | 67% | 64% | 58% |