Original Project
Substances, Chemical Reactions, and Conservation of Matter
Many substances react chemically in predictable ways with other substances to form new substances with different…
Item SC101003: Bubbles of gas forming as a seashell is placed in vinegar is an example of a chemical reaction.
Which of the following is an example of a chemical reaction?
- A piece of wax melting and forming a liquid
- A piece of chalk making white marks on a chalkboard
- Bubbles of gas forming when a seashell is placed in vinegar
- A powder dissolving in hot water to make hot chocolate
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1890 | 3537 | 53% |
| Grades | |||
| 6–8 | 1232 | 2423 | 51% |
| 9–12 | 647 | 1094 | 59% |
| Gender | |||
| Male | 859 | 1661 | 52% |
| Female | 991 | 1802 | 55% |
| Primary Language | |||
| English | 1719 | 3135 | 55% |
| Other | 127 | 315 | 40% |